USA HISTORY

Detailed explanation-1: -In the end, Texas was admitted to the United States a slave state. The annexation of Texas contributed to the coming of the Mexican-American War (1846-1848). The conflict started, in part, over a disagreement about which river was Mexico’s true northern border: the Nueces or the Rio Grande.

Detailed explanation-2: -Annexation was approved by the Texas and U.S. congresses in 1845, and the transfer of authority from the republic to the state of Texas took place in 1846. One unique feature of the annexation agreements was a provision permitting Texas to retain title to its public lands.

Detailed explanation-3: -Answer and Explanation: Some Americans opposed the annexation of Texas because of its implications for the balance of power between free states and slave states in the United States Congress. Starting at least in the 1820s, the issue of slavery increasingly important in American politics.

Detailed explanation-4: -In 1844, Congress finally agreed to annex Texas. On December 29, 1845, Texas entered the United States as a slave state, broadening the irrepressible differences in the United States over the issue of slavery and setting off the Mexican-American War.