Yuma Crossing
Immediately after the Mexican–American War in 1848, the U.S. Army built Fort Yuma here to protect travelers from Indians raiding the area. It was the center point of conflict in the Yuma War of 1850–53. From 1864–1890, the fort and nearby facilities was the main army base to support the US Army's efforts to control the Indians throughout the greater southwest.
Caste War of Yucatán
Although the war had been declared over many times before in previous decades, records show that the last time the Mexican army considered it necessary to take by force an area village that had never recognized Mexican law was in April 1933. Five Maya and two Mexican soldiers died in the battle for the village of Dzula, which was the last skirmish of a conflict lasting more than 85 years.