Mexican authorities blamed the loss of Texas on United States intervention.[272] Although the United States remained officially neutral,[299] 40 percent of the men who enlisted in the Texian army from October 1 through April 21 arrived from the United States after hostilities began.[300] More than 200 of the volunteers were members of the United States Army; none were punished when they returned to their posts.[299] American individuals also provided supplies and money to the cause of Texian independence.[301] For the next decade, Mexican politicians frequently denounced the United States for the involvement of its citizens.[302]
The United States agreed to recognize the Republic of Texas in March 1837 but declined to annex the territory.[303] The fledgling republic now attempted to persuade European nations to agree to recognition.[304] In late 1839 France recognized the Republic of Texas after being convinced it would make a fine trading partner.[305]
For several decades, official British policy was to maintain strong ties with Mexico in the hopes that the country could stop the United States from expanding further.[306] When the Texas Revolution erupted, Great Britain had declined to become involved, officially expressing confidence that Mexico could handle its own affairs.[307] In 1840, after years in which the Republic of Texas was neither annexed by the United States nor reabsorbed into Mexico, Britain signed a treaty to recognize the nation and act as a mediator to help Texas gain recognition from Mexico.[308]
The United States voted to annex Texas as the 28th state in March 1845.[309] Two months later, Mexico agreed to recognize the Republic of Texas as long as there was no annexation to the United States.[310] On July 4, 1845, Texians voted for annexation.[311] This prompted the Mexican–American War, in which Mexico lost almost 55 percent of its territory to the United States and formally relinquished its claim on Texas.[312]
