USA HISTORY

Detailed explanation-1: -The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. During his tenure, U.S. President James K. Polk oversaw the greatest territorial expansion of the United States to date.

Detailed explanation-2: -“Who is James K. Polk?” Whigs jeered. Democrats replied Polk was the candidate who stood for expansion. He linked the Texas issue, popular in the South, with the Oregon question, attractive to the North.

Detailed explanation-3: -Polk is chiefly known for extending the territory of the United States through the Mexican–American War; during his presidency, the United States expanded significantly with the annexation of the Republic of Texas, the Oregon Territory, and the Mexican Cession following American victory in the Mexican–American War.

Detailed explanation-4: -An ambitious politician with his gifted wife by his side, President Polk tirelessly pursued his goals. Texas joined the country as the 28th state during his first year in office. Tense negotiations with Great Britain concluded with American annexation of the Oregon Territory south of the 49th Parallel.

Detailed explanation-5: -Pres. James K. Polk oversaw a large territorial expansion of the United States. He advocated for annexation of Texas and aggressively prosecuted the resulting Mexican-American War, which added much of the Southwest and California to the country’s territory.