This is the second book in William L. Adams' series about military vets from the Rio Grande Valley in South Texas. "Valley Vets II: An Oral History of Texan Korean and Viet Nam Veterans of the Lower Rio Grande Valley includes the oral histories of more than fifty veterans, include four who fought on the side of the enemy Most of the vets were from Brownsville, but other cities include Harlingen, San Benito, Port Isabel, South Padre Island, Los Fresnos, and other Valley communities..