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, and on December, a second group of Rangers led by Capt. John "Rip" Ford arrived, larger and better organized. Because of appeals from Brownsville citizens, the U.S. Army sent troops from San Antonio to the nearby Fort Brown, which had been abandoned a few years ago. The fort's new commander, Maj. Samuel Heintzelman, united and coordinated all armed groups to put an end to the Cortina threat. Cortina retreated up the Rio Grande, until on December 27, 1859 Heintzelman and Ford engaged him in the Battle of Rio Grande City. Cortina's forces were decisively defeated, losing sixty men and all their equipment. Pursued and defeated by Ford again a few days later, Cortina retreated into the Burgos Mountains. The First Cortina War had finished, and with increasing pressure from both the United States and Mexican Government to cease all hostile activities, Cortina remained away from the scene for more than a year.