Two Armies on the Rio GrandeISBN: 9781623492250Platform/Publisher: Project MUSE / Texas A&M University PressDigital rights: Users: Unlimited; Printing: Chapters; Download: Chapters Subjects: Mexican War 1846-1848; Resaca de la Palma Battle of Tex. 1846.; Palo Alto Battle of Tex. 1846.; The opening campaign of the US-Mexican War transformed the map of each nation and shaped the course of conflict. Douglas A. Murphy provides the first balanced view of early battles such as Palo Alto and Resaca de la Palma.