Guns of the Texas Ranger, by Dac Crossley
When Texas Ranger Ygnacio ("Nacho") Ybarra slips across the border into Mexico, he is surprised by bandits and taken to confront an old acquaintance, Pancho Villa. The revolutionary leader charges NAcho to assist in corralling a rogue outlaw, Chulo Valdez. But that bandit lures Nacho into an attack on his own Ranger Company.
Guns of the Texas Ranger, volume one in the Border Trilogy, is a tale of Rangers Whitey Wilson and Red Regan and the girl they both love. And their search justice during the border wars, when only a small Ranger Company stands in the way of bandit raids. And how Ranger Nacho Ybarra prevented a war.