Later the same month, the Brownsville Tigers were joined by a group of Texas Rangers, and Cortina decided to attack them. The offensive was unsuccessful. In December, a second group of rangers led by Captain John "Rip" Ford arrived, larger and better organized. Because of appeals from Brownsville residents, the United States Army sent troops from San Antonio to the nearby Fort Brown, which had been abandoned a few years ago. The fort's new commander, Major Samuel Heintzelman, united and coordinated all armed groups to put an end to the Cortina threat.