 Soon after, Austin's militia was authorized to make war on Indian tribes who were hostile and molested the settlement.In 1827, in a move contrary to modern perceptions of Anglo-Texan colonists in Mexico, Austin's militia mobilized in support of the Mexican government to put down the Fredonian Rebellion, a group of Americans who tried to declare a part of Texas as an independent republic separate from Mexico.In 1835, all of the local militias in Texas were annexed by Sam Houston to provide a unified military command for the provisional government of the Republic of Texas.