See full list on britannica.com In the spring of 1846, tensions mounted between the United States and Mexico, and the Mexican-American War (1846-1848) started, in part, over a border dispute between the two countries. Mexico claimed the Nueces River to be Texas’s southern border, but the United States insisted the border lay further south at the Rio Grande River.The Mexican-American War - Explained in 16 minutes♦Consider supporting the Channel : https://www.patreon.com/Knowledgia♦Please consider to SUBSCRIBE: https:/...Mexican-American War: 1846-1848. On May 13, 1846, the U.S. Congress voted in favor of President James Polk’s request to declare war on Mexico in a dispute over Texas.Under the threat of war, the ...Map of North America if the Mexican-American war never happened. Despite not being so explicit in the lore, the US regions are much poorer than their IRL counterparts. For exemple, Deseret has a third of Utahs GDP despite a slightly bigger population, and California is almost half of its IRL population and GDP. Not to mention the USA itself.In terms of secondary source materials, the standard account of cartographic history in the American west is by Carl Irving Wheat, Mapping the Transmississippi West, 1540–1861, vol. 3, From the Mexican War to the Boundary Surveys, 1846–1854 (San Francisco: Institute of Historical Cartography, 1959).In this map, the top edge of the colored area reveals the Mexico-US border in the year 1830. The difference in Mexico’s northern boundary between then and today reveals all that was lost during Santa Anna’s career, as a result of: Texan independence (Treaty of Velasco, 1836), the Mexican-American War (Treaty of Guadalupe Hidalgo, 1848), and the Treaty of Mesilla (also known as the Gadsden ...A map of the campaigns of the Mexican-American War, via the US Army As expected, the US quickly moved to protect its borders. American armies would move south from the Rio Grande into Mexico and from Kansas into New Mexico Territory to take Santa Fe. After taking Santa Fe against little opposition, General Kearney headed west to California (map ...t. e. The Texas Revolution (October 2, 1835 – April 21, 1836) was a rebellion of colonists from the United States and Tejanos (Hispanic Texans) against the centralist government of Mexico in the Mexican state of Coahuila y Tejas. Although the uprising was part of a larger one, the Mexican Federalist War, that included other provinces opposed ...Mexico Texas United States Participants: Mexico United States Major Events: Battle of Buena Vista Battle of Cerro Gordo Battle of Contreras Battle of Palo Alto Battle of Chapultepec ... (Show more) Key People: John A. Logan James K. Polk Antonio López de Santa Anna Zachary Taylor Lewis Wallace See all related content → Top QuestionsMexican-American War Battle Flags. Below is a an example of a Mexican-American War battle flag found in our museum collections. Description: Captain Schuyler Hamilton carried this national flag, the colors of the 1st Ohio Volunteer Infantry (O.V.I.), in the battle of Monterrey in September 1846 during the Mexican War.In this map, the top edge of the colored area reveals the Mexico-US border in the year 1830. The difference in Mexico’s northern boundary between then and today reveals all that was lost during Santa Anna’s career, as a result of: Texan independence (Treaty of Velasco, 1836), the Mexican-American War (Treaty of Guadalupe Hidalgo, 1848), and the Treaty of Mesilla (also known as the Gadsden ...The Mexican Border War was the fifth and last major conflict fought on American soil, its predecessors being the American Revolutionary War, War of 1812, Mexican–American War (1846–1848), and the American Civil War. The end of the Mexican Revolution on December 1, 1920, marked the close of the American Frontier, although the American Indian ...Image: map showing the extent of Comanche raiding into Mexico during the 1830s and 1840s, from Brian Delay’s “War of a Thousand Deserts: Indian Raids and the U.S.-Mexican War.” The following article is primarily based on Delay’s work, as well as Pekka Hämäläinen’s “The Comanche Empire.” Download the PDF. Support this project.Mexican-American War (1846-48). The Mexican-American War was a war of national aggression to gain territory. It followed the 1845 annexation of Texas, which Mexico regarded as its territory. In 1836 the Texian Army won the Battle of San Jacinto against Mexican forces, led by famed general Santa Anna, and the Republic of Texas declared its ...The Mexican Border War was the fifth and last major conflict fought on American soil, its predecessors being the American Revolutionary War, War of 1812, Mexican–American War (1846–1848), and the American Civil War. The end of the Mexican Revolution on December 1, 1920, marked the close of the American Frontier, although the American Indian ...Mexican War Map: the Mexican minister at Washington, protested against the measure and demanded his passports. On June 4 following the President of Mexico (Herrera) issued a proclamation declaring the right of Mexico to the Texan territory, and his determination to defend it by arms, if necessary. At the same time there existed another cause ...Mexican-American War: 1846-1848. On May 13, 1846, the U.S. Congress voted in favor of President James Polk’s request to declare war on Mexico in a dispute over Texas.Under the threat of war, the ...Maps nos. 35, 36, 37, and 38 published separately in LC Civil War Maps (2nd ed.) under entry nos. 30, 42, 51, and 76 respectively. ... Map The Mexican War, 1846-1848 ...Treaty of Guadalupe Hidalgo, (Feb. 2, 1848), treaty between the United States and Mexico that ended the Mexican War. It was signed at Villa de Guadalupe Hidalgo, which is a northern neighbourhood of Mexico City. The treaty drew the boundary between the United States and Mexico at the Rio Grande and the Gila River; for a payment of $15,000,000 ...Incorporating a map lesson into your instruction of the Mexican-American War is a great way to reinforce and differentiate learning. The map directions require students to label and color code the following: United States, Mexico, the area in dispute, Rio Grande River, Nueces River, Pacific Ocean, and Gulf of Mexico.Mexico, he charged, “has invaded our territory and shed American blood upon American soil. ” Two days after Polk’s speech, Congress declared war on Mexico. The Mexican-American War had begun. The Fall of New Mexico and California A few months later, General Stephen Kearny led the Army of the West out of Kansas.Mexico Texas United States Participants: Mexico United States Major Events: Battle of Buena Vista Battle of Cerro Gordo Battle of Contreras Battle of Palo Alto Battle of Chapultepec ... (Show more) Key People: John A. Logan James K. Polk Antonio López de Santa Anna Zachary Taylor Lewis Wallace See all related content → Top QuestionsIncorporating a map lesson into your instruction of the Mexican-American War is a great way to reinforce and differentiate learning. The map directions require students to label and color code the following: United States, Mexico, the area in dispute, Rio Grande River, Nueces River, Pacific Ocean, and Gulf of Mexico. See full list on britannica.com March, 1846. General Taylor leads troops past the Nueces River toward the Rio Grande River, through and into the land that both the U.S. and Mexico claimed as its own. April 25, 1846. The Mexican-American War begins when Mexican troops cross north of the Rio Grande River and opened fire on U.S. troops at Fort Texas. May 8, 1846.Mexico, he charged, “has invaded our territory and shed American blood upon American soil. ” Two days after Polk’s speech, Congress declared war on Mexico. The Mexican-American War had begun. The Fall of New Mexico and California A few months later, General Stephen Kearny led the Army of the West out of Kansas.Nov 9, 2009 · The Mexican-American War was a 1846-1848 conflict over vast territories in the American West, which the Treaty of Guadalupe Hidalgo gave to the United States. Shows This Day In History... The Mexican–American War, [a] also known in the United States as the Mexican War, [b] was an invasion of Mexico by the United States Army from 1846 to 1848. It followed the 1845 American annexation of Texas, which Mexico still considered its territory.The lesson includes a reading from Zinn’s chapter, “We Take Nothing by Conquest, Thank God.”. Here is an excerpt. Frederick Douglass wrote in his Rochester newspaper the North Star, January 21, 1848, of “the present disgraceful, cruel, and iniquitous war with our sister republic. Mexico seems a doomed victim to Anglo Saxon cupidity and ...Mexican War Dead or Veterans From the American Battle Monuments Commission, this site remembers soldiers from the Mexican War who are buried in the Mexico City National Cemetery. Robert E. Lee Mexican War Maps An online exhibit of 30 original military maps owned by Robert E. Lee from the holdings of the Virginia Military Institute. U.S.-Mexican ...Mexican-American War Battle Flags. Below is a an example of a Mexican-American War battle flag found in our museum collections. Description: Captain Schuyler Hamilton carried this national flag, the colors of the 1st Ohio Volunteer Infantry (O.V.I.), in the battle of Monterrey in September 1846 during the Mexican War.Map of North America if the Mexican-American war never happened. Despite not being so explicit in the lore, the US regions are much poorer than their IRL counterparts. For exemple, Deseret has a third of Utahs GDP despite a slightly bigger population, and California is almost half of its IRL population and GDP. Not to mention the USA itself.It also set the Rio Grande as the border between Mexico and the United States. America agreed to pay Mexico 15 million dollars. Mexican-American War Articles and Activities. Zachary Taylor Buchanan Biography; Mr. Polk's War - A Fictional Dialogue Between President Polk and Lincoln About Imperalism and Manifest Destiny; America in 1848 Label-me Mapt. e. The Texas Revolution (October 2, 1835 – April 21, 1836) was a rebellion of colonists from the United States and Tejanos (Hispanic Texans) against the centralist government of Mexico in the Mexican state of Coahuila y Tejas. Although the uprising was part of a larger one, the Mexican Federalist War, that included other provinces opposed ...The Mexican-American war in a nutshell. May marks two key anniversaries in the conflict between the United States and Mexico that set in motion the Civil War—and led to California, Texas, and eight other states joining the Union. On May 13, 1846, the United States Congress declared war on Mexico after a request from President James K. Polk.Nevertheless, the Mexican-American War had far-reaching consequences for both the United States, Mexico, and the Indigenous peoples whose land both nations claimed. First among these was the. cession. of about one third of Mexico’s territory to the United States, a landmass of over 338,000,000 acres. We would like to show you a description here but the site won’t allow us.On February 2, 1848, the Treaty of Guadalupe Hidalgo was signed which officially ended the Mexican-American War. However, as the guns fell silent, and the men returned home, a new war was brewing, one that continues to shape the course of this country to this day. While Ulysses S. Grant might have argued that the Civil War was God’s ...On May 13, 1846, the United States declared war on Mexico, beginning the Mexican-American War. The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous people, the California Gold Rush, and American Civil War.In the spring of 1846, tensions mounted between the United States and Mexico, and the Mexican-American War (1846-1848) started, in part, over a border dispute between the two countries. Mexico claimed the Nueces River to be Texas’s southern border, but the United States insisted the border lay further south at the Rio Grande River.The U.S.-Mexican War, 1846-1848 An outstanding site for just browsing or for conducting serious research on the Mexican-American War. Images, documents, maps, timelines, statistics, and much more is brought to you by the Descendants of Mexican War Veterans. Easy-to-navigate and beautifully illustrated. Report broken linkMexican-American War (1846-48). The Mexican-American War was a war of national aggression to gain territory. It followed the 1845 annexation of Texas, which Mexico regarded as its territory. In 1836 the Texian Army won the Battle of San Jacinto against Mexican forces, led by famed general Santa Anna, and the Republic of Texas declared its ...The Mexican Cession ( Spanish: Cesión mexicana) is the region in the modern-day southwestern United States that Mexico originally controlled, then ceded to the United States in the Treaty of Guadalupe Hidalgo in 1848 after the Mexican–American War. This region had not been part of the areas east of the Rio Grande that had been claimed by the ...Mexican War Dead or Veterans From the American Battle Monuments Commission, this site remembers soldiers from the Mexican War who are buried in the Mexico City National Cemetery. Robert E. Lee Mexican War Maps An online exhibit of 30 original military maps owned by Robert E. Lee from the holdings of the Virginia Military Institute. U.S.-Mexican ...Slavery being spread into Mexico. This was not a cause of the Mexican-American War: 1) Shots fired from both sides along the Rio Grande River. 2) United States takes over Mexico City. 3) Santa Anna and Mexican army are defeated. 4) Treaty of Guadalupe-Hildago is signed.Mexican War Map: the Mexican minister at Washington, protested against the measure and demanded his passports. On June 4 following the President of Mexico (Herrera) issued a proclamation declaring the right of Mexico to the Texan territory, and his determination to defend it by arms, if necessary. At the same time there existed another cause ...Mexican-American War Map. The conflict between the United States and Mexico in 1846-48 had its roots in the annexation of Texas and the westward thrust of American settlers. On assuming the American presidency in 1845, James K. Polk attempted to secure Mexican agreement to setting the boundary at the Rio Grande and to the sale of northern ... Winter 1997, Vol. 29, No. 4 | Genealogy Notes By Mitchell Yockelson Part 1 of this article in the fall issue (Vol. 29, No. 3) discussed the tumult following the 1910 Mexican Revolution and American concerns over the civil war in Mexico. Pancho Villa's raid on Columbus, New Mexico, on March 9, 1916, prompted the United States to organize an expedition in retaliation. While the army prepared for ...American forces withstand Mexican Army attacks. (A) Battle of Palo Alto. May 8. Mexican Army under Mariano Arista in the disputed land between the Rio Grande (Río Bravo) and the Nueces River engage an American army attempting to lift the aforementioned Siege of Fort Texas. (A) Battle of Resaca de la Palma. November 27 – December 8, 1847 – Siege of La Paz – A second Mexican attack on La Paz, Mexico, ends in an American victory. January 22 – February 14, 1848 – Siege of San José del Cabo – A failed Mexican siege of San Jose del Cabo. January – August 1848 – Mexican partisans resisted the U.S. Army of Occupation.On May 13, 1846, the United States declared war on Mexico, beginning the Mexican-American War. The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous people, the California Gold Rush, and American Civil War.The catalyst for the Mexican-American War was the U.S. annexation of Texas on 29 December 1845. When Mexico responded by ending diplomatic relations with the U.S. government, President James K. Polk asked Congress to declare war on Mexico. Polk took advantage of the animosity between the two nations to advance a political agenda focused on Manifest Destiny (the belief that the U.S. was ...The outcome of the Mexican-American War affects trade in the United States had very little impact on trade since the area gained was mountainous. The last option fits best as the answer to this question. Explanation: The Mexican-American War took place between 1846 and 1848 due to various factors.Mexico attacked in April 1846, and when the Mexican-American War ended in February 1848, the border we see today began to take shape. On the east, the line would follow the Rio Grande.The St. Patrick's Battalion—known in Spanish as el Batallón de los San Patricios —was a Mexican army unit comprised primarily of Irish Catholics who had defected from the invading US army during the Mexican-American War. The St. Patrick's Battalion was an elite artillery unit which inflicted great damage on the Americans during the battles ...However, Mexico did keep the southern state of Chiapas. It lost another 55% of its territory as a result of Texas independence and its war with the United States (1846-1848) and then sold a much smaller southern slice of Arizona and New Mexico in 1854 (Gadsden Purchase/La Mesilla).However, Mexico did keep the southern state of Chiapas. It lost another 55% of its territory as a result of Texas independence and its war with the United States (1846-1848) and then sold a much smaller southern slice of Arizona and New Mexico in 1854 (Gadsden Purchase/La Mesilla).November 27 – December 8, 1847 – Siege of La Paz – A second Mexican attack on La Paz, Mexico, ends in an American victory. January 22 – February 14, 1848 – Siege of San José del Cabo – A failed Mexican siege of San Jose del Cabo. January – August 1848 – Mexican partisans resisted the U.S. Army of Occupation.Battle of Matamoros, May 15-16, 1846. The conquest of California, June 1846-Jan. 1847. Battle of Sacramento. Invasion from Veracruz to Mexico City. Scott's advance on Mexico City, March-Sept. 1847.The Mexican-American War. by Dr. Kimberly Kutz Elliott. Opinion on the war with Mexico was divided and Woodville therefore depicted a range of responses among the figures reading the latest news in a Western outpost. Detail, Richard Caton Woodville, War News from Mexico, 1848, oil on canvas, 68.6 × 63.5 cm (Crystal Bridges Museum of American Art).Jun 17, 2022 · From the American Battle Monuments Commission, this site remembers soldiers from the Mexican War who are buried in the Mexico City National Cemetery. Robert E. Lee Mexican War Maps An online exhibit of 30 original military maps owned by Robert E. Lee from the holdings of the Virginia Military Institute. U.S.-Mexican War (1846-1848) The Mexican–American War, [a] also known in the United States as the Mexican War, [b] was an invasion of Mexico by the United States Army from 1846 to 1848. It followed the 1845 American annexation of Texas, which Mexico still considered its territory.The Treaty of Guadalupe Hidalgo, signed in February 1848, was a triumph for American expansionism under which Mexico ceded nearly half its land to the United States. The Mexican Cession, as the conquest of land west of the Rio Grande was called, included the current states of California, New Mexico, Arizona, Nevada, Utah, and portions of ...Original Border (1828) In 1821, Mexico won a war against Spain where it won Mexico their independence. Mexico had claimed a huge part of land, roughly around 5,000,000 kilometers squared. A lot of the land was lost due to a war that erupted further along the timeline. Mexico - US Border.In Mexican history, the Texas campaign, including the Battle of the Alamo, was soon overshadowed by the Mexican–American War of 1846–1848. In San Antonio de Béxar, the largely Tejano population viewed the Alamo complex as more than just a battle site; it represented decades of assistance—as a mission, a hospital, or a military post.Historical Map of North America & the Caribbean (13 May 1846 - Outbreak of the Mexican–American War: With the annexation of Texas, the US inherited that state's boundary dispute with Mexico. In a bid to settle the issue, as well as purchase the Mexican territories of Alta California and New Mexico, President Polk offered to pay $25 million ...Incorporating a map lesson into your instruction of the Mexican-American War is a great way to reinforce and differentiate learning. The map directions require students to label and color code the following: United States, Mexico, the area in dispute, Rio Grande River, Nueces River, Pacific Ocean, and Gulf of Mexico. Mexican-American War Map. The conflict between the United States and Mexico in 1846-48 had its roots in the annexation of Texas and the westward thrust of American settlers. On assuming the American presidency in 1845, James K. Polk attempted to secure Mexican agreement to setting the boundary at the Rio Grande and to the sale of northern ...Texas Revolution, also called War of Texas Independence, war fought from October 1835 to April 1836 between Mexico and Texas colonists that resulted in Texas’s independence from Mexico and the founding of the Republic of Texas (1836–45). Although the Texas Revolution was bookended by the Battles of Gonzales and San Jacinto, armed conflict ...Mexico attacked in April 1846, and when the Mexican-American War ended in February 1848, the border we see today began to take shape. On the east, the line would follow the Rio Grande.10. It had one of the highest casualty rates of any American war. The U.S. never a lost a major battle during the Mexican-American War, but the victory still proved costly. Of the 79,000 American ...The Mexican-American war in a nutshell. May marks two key anniversaries in the conflict between the United States and Mexico that set in motion the Civil War—and led to California, Texas, and eight other states joining the Union. On May 13, 1846, the United States Congress declared war on Mexico after a request from President James K. Polk.The U.S. - Mexico War (1846-1848) is the largest and most significant armed struggle between two nations in the western hemisphere. Learn more about this historical event by browsing source materials from the United States and Mexico such as proclamations, graphics, letters, and diaries from the collections of the University of Texas at Arlington.On May 13, 1846, the United States declared war on Mexico, beginning the Mexican-American War. The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous people, the California Gold Rush, and American Civil War.Treaty of Guadalupe Hidalgo, (Feb. 2, 1848), treaty between the United States and Mexico that ended the Mexican War. It was signed at Villa de Guadalupe Hidalgo, which is a northern neighbourhood of Mexico City. The treaty drew the boundary between the United States and Mexico at the Rio Grande and the Gila River; for a payment of $15,000,000 ...The Battle of Palo Alto: May 8, 1846. The first major battle of the Mexican-American War took place at Palo Alto, not far from the US/Mexico border in Texas. By May of 1846, a series of skirmishes had flared into all-out war. Mexican General Mariano Arista laid siege to Fort Texas, knowing that American General Zachary Taylor would have to come ...Incorporating a map lesson into your instruction of the Mexican-American War is a great way to reinforce and differentiate learning. The map directions require students to label and color code the following: United States, Mexico, the area in dispute, Rio Grande River, Nueces River, Pacific Ocean, and Gulf of Mexico.Battle of Palo Alto, (May 8, 1846), first clash in the Mexican-American War, fought in the disputed territory between the Nueces and the Rio Grande rivers. The site of the battle is in present-day southeastern Texas, U.S., about 9 miles (14.5 km) northeast of Matamoros, Mexico. Gen. Mariano Arista led some 3,200 Mexican troops across the Rio ...The outcome of the Mexican-American War affects trade in the United States had very little impact on trade since the area gained was mountainous. The last option fits best as the answer to this question. Explanation: The Mexican-American War took place between 1846 and 1848 due to various factors.The outcome of the Mexican-American War affects trade in the United States had very little impact on trade since the area gained was mountainous. The last option fits best as the answer to this question. Explanation: The Mexican-American War took place between 1846 and 1848 due to various factors.On May 13, 1846, the United States declared war on Mexico, beginning the Mexican-American War. The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous people, the California Gold Rush, and American Civil War.
Incorporating a map lesson into your instruction of the Mexican-American War is a great way to reinforce and differentiate learning. The map directions require students to label and color code the following: United States, Mexico, the area in dispute, Rio Grande River, Nueces River, Pacific Ocean, and Gulf of Mexico. . Malls
Map of the Battle of Resaca de la Palma - May 9, 1846. Reference Maps on the Aftermath of the Mexican-American War 1846-1848. Fourteen Maps of the United States: Territorial Growth 1775-1970. Three Maps of the United States: Expansion 1783-1854. Map of the Expansion of the United States 1783-1907. Four Maps of the Organization of Territories in ...The lesson includes a reading from Zinn’s chapter, “We Take Nothing by Conquest, Thank God.”. Here is an excerpt. Frederick Douglass wrote in his Rochester newspaper the North Star, January 21, 1848, of “the present disgraceful, cruel, and iniquitous war with our sister republic. Mexico seems a doomed victim to Anglo Saxon cupidity and ...Historical Map of North America & the Caribbean (13 May 1846 - Outbreak of the Mexican–American War: With the annexation of Texas, the US inherited that state's boundary dispute with Mexico. In a bid to settle the issue, as well as purchase the Mexican territories of Alta California and New Mexico, President Polk offered to pay $25 million ...Maps nos. 35, 36, 37, and 38 published separately in LC Civil War Maps (2nd ed.) under entry nos. 30, 42, 51, and 76 respectively. ... Map The Mexican War, 1846-1848 ...On May 13, 1846, the United States declared war on Mexico, beginning the Mexican-American War. The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous people, the California Gold Rush, and American Civil War.Mexican-American War Battle Flags. Below is a an example of a Mexican-American War battle flag found in our museum collections. Description: Captain Schuyler Hamilton carried this national flag, the colors of the 1st Ohio Volunteer Infantry (O.V.I.), in the battle of Monterrey in September 1846 during the Mexican War.Map of Mexico between 1836 and 1846, from the secession of Texas, Rio grande, and Yucatán to the Mexican–American War of 1846. On August 22, 1846, due to the war with the United States, the Federal Constitution of the United Mexican States of 1824 was restored. There remained the separation of Yucatán, but 2 years later Yucatán ...Mexico Texas United States Participants: Mexico United States Major Events: Battle of Buena Vista Battle of Cerro Gordo Battle of Contreras Battle of Palo Alto Battle of Chapultepec ... (Show more) Key People: John A. Logan James K. Polk Antonio López de Santa Anna Zachary Taylor Lewis Wallace See all related content → Top QuestionsThe Mexican American War Map The Mexican American War Map shows an over view of the territorial expansion of the United States and the 1845 Texas Annexation and the 1848 Mexican cession agreed in the Treaty of Guadalupe Hidalgo. The Treaty of Guadalupe Hidalgo granted all land from Texas to California, minus the Gadsden Purchase.Winter 1997, Vol. 29, No. 4 | Genealogy Notes By Mitchell Yockelson Part 1 of this article in the fall issue (Vol. 29, No. 3) discussed the tumult following the 1910 Mexican Revolution and American concerns over the civil war in Mexico. Pancho Villa's raid on Columbus, New Mexico, on March 9, 1916, prompted the United States to organize an expedition in retaliation. While the army prepared for ...The catalyst for the Mexican-American War was the U.S. annexation of Texas on 29 December 1845. When Mexico responded by ending diplomatic relations with the U.S. government, President James K. Polk asked Congress to declare war on Mexico. Polk took advantage of the animosity between the two nations to advance a political agenda focused on Manifest Destiny (the belief that the U.S. was ...The Treaty of Guadalupe Hidalgo, signed in February 1848, was a triumph for American expansionism under which Mexico ceded nearly half its land to the United States. The Mexican Cession, as the conquest of land west of the Rio Grande was called, included the current states of California, New Mexico, Arizona, Nevada, Utah, and portions of ....