There were several of them. Two instances include:
Mexico refused to recognize the annexation.
Mexico broke off diplomatic relations with the United States after the annexation of Texas in 1845. The annexation was a significant factor leading to heightened tensions between the two nations, ultimately culminating in the Mexican-American War (1846-1848). Mexico viewed the annexation as an act of aggression and a violation of its sovereignty.
Breaking diplomatic relations means that two countries have broken ties between each other. In 1964, the United states broke diplomatic relations with Cuba due to changes in leadership.
Borders and Bargains. The US had failed in its diplomatic efforts to obtain the purchase of the Mexican States of Alta California and Nuevo Mexico and Mexico had informed the US that annexing Tejas would be considered an Act of War. The US annexed Texas despite this threat, but Mexico failed to declare war and instead only broke off diplomatic relations with the United States.
Borders and Bargains. The US had failed in its diplomatic efforts to obtain the purchase of the Mexican States of Alta California and Nuevo Mexico and Mexico had informed the US that annexing Tejas would be considered an Act of War. The US annexed Texas despite this threat, but Mexico failed to declare war and instead only broke off diplomatic relations with the United States.
The Republic of Texas was annexed by the United States after Mexico had provided diplomatic notice that it continued to have a claim on Texas as a State in revolt and that the Annexation would be considered an Act of War. When the US annexed Texas, Mexico broke off diplomatic relations with the US but it did not pass a Declaration of War. The problems of Texas became the problems of the US and they required fixing.
The US broke diplomatic relations with Germany in December 1941 after Germany declared war on the US. The US had declared that war existed between Japan and the Us as a result of the Japanese attack on Pearl Harbor and their invasion of the Philippines. Germany then complied with mutual defense terms of the Axis Treaty by declaring war on the US.
war between France and Mexico , Puebla
The annexation of Texas did not end disputes between Mexico and the United States. Mexico asserted that the border was the Neuces river, while the U.S. claimed the Rio Grande river formed the border.
The United States officially broke diplomatic ties with the People's Republic of China on January 1, 1979. This shift followed decades of tension after the Communist Party took power in China in 1949. The U.S. had previously recognized the Republic of China (Taiwan) as the legitimate government of China. The normalization of relations in 1979 marked a significant turning point in U.S.-China relations.
mexico gave the us land to "borrow" and the us wanted to keep the land so when mexico came to retrive the land we sent the us military over and we ran in to the mexican military and we started fighting. we won(obviously) so we declared it TEXAS
all of the above