The Villasur expedition of 1720 was a Spanish military expedition intended to check New France's growing influence on the North American Great Plains, led by Lieutenant-General Pedro de Villasur. Pawnee and Otoe Indians attacked the expedition in Nebraska, killing 36 of the 40 Spaniards, 10 of their Indian allies, and a French guide. The survivors retreated to their base in New Mexico.
The governor of the Spanish colony of Nuevo México based in Santa Fe ordered Villasur to capture French traders on the plains. Spanish authorities hoped to gather intelligence about French ambitions in the region. Villasur had no experience with Indians, but he left Santa Fe on June 16, 1720, leading an expedition which included about 40 soldiers of a mounted frontier corps, 60 to 70 Pueblo allies, a priest, a Spanish trader, and approximately 12 Apache guides, who were tribal enemies of the Pawnee. Scout leader José Naranjo was of African-Hopi parentage, and he might have previously reached the South Platte River area.
The expedition made its way northeast through Colorado, Kansas, and Nebraska. In August, they made contact with the Pawnee and Otoe along the Platte and Loup rivers. Villasur made several attempts to negotiate with Indians in the area, using Francisco Sistaca, a Pawnee held as a slave, to translate. On August 13, Sistaca disappeared from camp. Villasur camped that night just south of the Loup–Platte confluence near Columbus, Nebraska, nervous about the possibility of attack and the increasing number and belligerence of the Pawnee and Otoe Indians.
The Pawnees and Otoes attacked at dawn on August 14, shooting heavy musketry fire and flights of arrows, then charging into combat clad only in paint, headbands, moccasins, and short leggings. Some survivors reported that Frenchmen had been among the attackers, and men in European dress are shown in a surviving painting of the battle. The Spanish were mostly asleep at this hour; possibly Sistaca had told the Pawnees the best time to attack. In a brief battle, they killed 36 Spaniards, including Villasur and Naranjo, 10 Pueblo scouts, and Jean L'Archevêque, a Frenchman who had been brought as an interpreter. The Pueblo allies were encamped nearby but separately from the Spanish, and they were not the first targets of the attack.
The Spanish and Pueblo survivors returned to Santa Fe on September 6. The expedition had journeyed farther to the north and east than any other Spanish military expedition, and its defeat marked the end of Spanish influence on the central Great Plains. The French in Illinois were elated to learn of the battle in October, but subsequent French expeditions did not establish French trade and influence in the area.
^Chartrand, Rene (2011). The Spanish Army in North America. Osprey Publishing. p. 11. ISBN9781849085977.
^Alfred Thomas, After Coronado: Spanish Exploration Northeast of New Mexico, 1696–1727; Documents from the Archives of Spain Mexico and New Mexico (Norman: University of Oklahoma Press, 1935, third printing 1969) , pp. 156, 275n118.