On March 5, 1842, Vásquez occupied San Antonio[1] with approximately 700 men. The Texans, not being strong enough to control the city, evacuated without a fight when Vásquez demanded his surrender. He took San Antonio, raised the Mexican flag and declared Mexican laws into force.[1]
Vásquez left on March 7 and crossed the Rio Grande back to Mexico; His invasion was considered a looting or a guerrilla raid and was one of the events that led to the Somervell and Mier expeditions.[2]