In May 1846, the army numbered 2,400 and was divided into two brigades. The 1st Brigade was commanded by Lt. Col. William G. Belknap and would be the right wing of the army. The 2nd Brigade was commanded by Colonel David E. Twiggs and was the left wing. Taylor defeated the Mexican army at the battles of Palo Alto and Resaca de la Palma.&lt;br&gt;