what was that about?
An uprising of colonists from the US and Texas Mexicans who put up armed resistance to the centralist government of Mexico.
Texas Revolution
The Texas Revolution (October 2, 1835 – April 21, 1836) was a rebellion of colonists from the United States and Tejanos (Texas Mexicans) in putting up armed resistance to the centralist government of Mexico. 
who was in charge of the texas army at the alamo James Bowie and William B. Travis when was this battle fought? Between February 23 and March 6, 1836 who was it fought between? Republic of Texas and Mexico what was the background of it? In 1835, after the conservatives won the elections in Mexico, the federalist constitution was eventually repealed. The new policies that came about made immigration laws more stringent and import tariffs harsher. All these led to rise in tensions in the border areas of Mexican Texas which had a large immigrant population. this last area you mentioned just now, what is that? The area refers to the combined lands of Coahuila and Texas that created the state of Coahuila y Tejas, but the name is a historiographical entity used to refer to the era of Texan history between 1821 and 1836, when it was a part of mexico which revolution did it experience? The Texas Revolution
wiki:11585257
Texas Revolution [SEP] Introduction
The Texas Revolution (October 2, 1835 – April 21, 1836) was a rebellion of colonists from the United States and Tejanos (Texas Mexicans) in putting up armed resistance to the centralist government of Mexico. While the uprising was part of a larger one, the Mexican Federalist War, that included other provinces opposed to the regime of President Antonio López de Santa Anna, the Mexican government believed the United States had instigated the Texas insurrection with the goal of annexation. The Mexican Congress passed the Tornel Decree, declaring that any foreigners fighting against Mexican troops "will be deemed pirates and dealt with as such, being citizens of no nation presently at war with the Republic and fighting under no recognized flag".