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.
Yuma War
When conflict with the Cocopah ceased the Americans at Fort Yuma received a new objective which was to prevent further bloodshed between the American tribes. Chief Irataba went to Fort Yuma where he asked the Americans to deliver a sort of contract to the four other Mohave war chiefs. The four braves were Kapetame, Asikahota, Tapaikuneche and Hatsurama, and with Irataba they were known as the "Five Brave Men". All ranked equally and all received five letters from the American army, which, if accepted, they would no longer attack other Americans tribes or American settlers and they would not prevent the army from building forts and roads on their land. If the stipulations were not met the United States would go to war against the Mohave. With some convincing from Aratave, the four other chiefs eventually agreed to be peaceful and the Yuma War came to an end.