Handsome and chivalrous heirs of medieval knights, the lancers were the darlings of the parade through San Antonio on the day the Army of New Mexico headed west. Bright red flags with white stars snapped from their lances. Lances had been common on Napoleonic battlefields, and were used by Mexican cavalry during the conflicts against the Texans in the 1830s and 1840s. The lances that these two companies carried were war trophies captured from the Mexicans during the Mexican American War thirteen years earlier
He turned to the commanders of his two lancer companies, Captains Willis Lang and Jerome McCown, and asked which would like to have the honor of the first charge.
Lang quickly organized his men. Minutes later, he gave the signal and his company cantered forward, lowered their lances, and began galloping across the 300 yards that divided his men from the men in the unusual uniforms. The plan called for McCown's company to follow after the Union troops had broken, and the two lancer companies would chase the panicking Union men into the Rio Grande that stood at their back.