Answer:
Texas was originally a part of Mexico and had a greater population of its citizens in the area.
The most important set of actions which led to the war between US and Mexico include
U.S. Senate defeating the agreement of annexation with Texas
U.S. President John Tyler signing the Brown Resolution which offered Texas terms of annexation.
In response to passage of the Brown Resolution, Mexico's minister to the U.S., Juan N. Almonte, requests his passports, breaking off diplomatic relations between the two countries
Texas convention votes in favor of annexation to the United States
In Matamoros, Mexican General Francisco Mejia issues a proclamation threatening hostilities against U.S. troops
United States declares war against Mexico and US troops occupy Matamoros.
Patrick Henry represented the pent up frustrations of many colonists who were tired of the imposition of taxes and other penalties to pay for the expense of the French and Indian War (1754-1763). The Boston Massacre (1770), which was a response to the Intolerable Acts, Lexington and Concord (1775) and the First (1774) and Second Continental Congresses (1775) provided the backdrop for his famous declaration, ""Give Me Liberty or Give Me Death". His sentiments captured the desire of the colonists to engage in open rebellion against the British Empire. Independence was declared in 1776.