Coeur d'Alene War
The Coeur d'Alene War of 1858, also known as the Spokane-Coeur d'Alene-Paloos War, was the second phase of the Yakima War, involving a series of encounters between the allied Native American tribes of the Coeur d’Alene, Spokane, Palouse and Northern Paiute against United States Army forces in the Washington and Idaho areas.
A larger force of 601 men under Colonel George Wright was sent to subdue the tribes. On September 1, 1858 Wright's troops defeated the allied tribes at the Battle of Four Lakes and four days later he defeated another force in the Battle of Spokane Plains.
After the Four Lakes battle, the army hanged seventeen Palouse along Latah Creek which was later called Hangman Creek as a result, though the name has reverted to Latah Creek in the State of Washington. In Idaho, the stream is still named Hangman Creek. Among the hanged was a chief named Qualchan of the Yakima.
Isaac Stevens, who became the Governor of Washington Territory in 1853, promoted the idea of a transcontinental railroad to the Pacific Northwest to transport the raw materials found in the region to the East. In 1851, Stevens had negotiated a series of treaties with many of the tribes in the area, with the aim of moving the Native Americans to reservations so that settlers could begin moving into the Northwest and begin railway and road building.  The treaties promised the Indian tribes annuities in return and guaranteed that the US would prevent whites from trespassing on their allotted lands. The Coeur d'Alene Indians, however, attempted to stay out of negotiations with Stevens, hoping they could retain their ancestral lands and not be moved. 
The discovery of gold on the upper Columbia River drainage in the summer of 1855 brought a large influx of miners into the area, trespassing on the land that was promised (during the Walla Walla Council (1855)) to many of the tribes in the area, including the Yakima. This violation angered the tribes who felt that the promises that had been made to them by the United States government were not being honored. This led to a retaliation through the murder of the Indian agent for that area, thereby inciting the Yakima War. The local tribes were defeated, and Stevens held a peace council at Fort Walla Walla in September 1856 that brought an end to the Yakima War.
Causes of the Coeur d'Alene War
In 1857, Isaac Stevens was elected as the Washington territorial delegate to Congress, causing him to leave the territory. His departure angered the tribes who had not yet made treaties. The Coeur d’Alenes, seeing that white settlement in the area was inevitable, feared that without a treaty, they would lose the rights to their ancestral lands and therefore have no protection against the encroaching white settlers. When the settlers actually did begin moving onto tribal lands, there were strong tensions between the white miners and the tribes, which caused small skirmishes that raised the tribes’ fears of United States military intervention.
A Yakima Chief, Qualchan, who was disgruntled following the loss of the Yakima War to the U.S. Army, gathered the Colville, the Coeur d'Alene, the Columbia River, and the Kalispel tribes at a council in order to convince the tribes that the white man was encroaching on their lands and that they needed to defend them. The Coeur d’Alene and other tribes subsequently held a council discussing their concerns that the army would invade their territory as a result of the growing tensions. A line was drawn at the Snake River, agreeing that if the army crossed it, they would have effectively crossed into the Indians’ territory, and this would be considered a hostile action. Interestingly, the Coeur d’Alene tribe was split in their feelings toward war. The tribal leaders did not want war, fearing that the consequences to their people would be devastating, while the younger warriors, led by Milkapsi, were angry and wanted to fight.
Crossing of the Snake River
Due to a miner's a death in Colville, Washington, committed by unknown Indians in early 1858, Colonel Edward Steptoe received orders to lead an expedition to the area to show the strength of the U.S. Army to convince the Indians to turn in those who were responsible. He left Fort Walla Walla in May 1858 to head for the Colville area and planned to cut through the Coeur d’Alene and Spokane territories. However, the troops that Steptoe brought numbered only 159, and they were very poorly armed.  Steptoe expected cooperation from the Nez Perce and Spokanes since in the past they had given him boats and men at the Snake River, which was the main barrier to reaching Colville. Therefore, in their attempts to reach Colville, Steptoe crossed the Snake River, unaided however, which was the previously assigned line of hostility, sparking the tribes’ belief that the army was going to engage them. The Coeur d'Alene, Palouse, Spokane, and some of the Yakima gathered in preparation of a fight. Chief Vincent of the Coeur d’Alene demanded Steptoe’s reason for his trespass, and he responded that they were on their way to Colville. Vincent returned to his camp to try and calm down the young warriors who were intent on fighting, while Steptoe attempted to return to Fort Walla Walla. Steptoe's journey, however, was interrupted by the Indian leaders, who asked him to return to meet with them. The meeting ended with a handshake and a mutual agreement that Steptoe would leave their territory and travel via a different route to reach Colville. Despite this peaceful agreement, a frustrated Coeur d’Alene warrior later shot at Steptoe’s men, inciting the start of fighting between Steptoe and the Coeur d’Alene, Spokane, and other tribes. Steptoe’s men struggled to fight the 1000 Indian warriors, but because they were so severely outnumbered, Steptoe made the decision to escape that night, and return to Fort Walla Walla.
General Clarke's response
After hearing the news of Steptoe's clash on top of other recent unsatisfactory events, such as the Yakima War, that the Army had suffered at the hands of the Indians, General Newman S. Clarke would not tolerate another defeat. When Steptoe returned to the fort, Clarke sent a peace proposal in June 1858, demanding that the tribes surrender their weapons and those who were responsible for the fighting. The tribes, however, were divided in their opinions and could not agree upon a solution. General Clarke, determined not be defeated again at the hands of the Indians, responded by sending a strong military force. He sent orders to Army posts calling for all available regulars to be sent in to aid the fight. Clarke sent all available troops to the region, including those under the leadership of Colonel George Wright, who had previously been a leading figure in the Yakima War. Clarke ordered the troops to attack vigorously until they had complete submission by the Indians.
Two main battles
Wright led the United States troops at the Battle of Four Lakes on September 1, and was able to beat back the tribal forces. The tribes then fought back in the Battle of Spokane Plains, where they set fire to the grass and shot at the troops through the smoke; while there was no decisive winner, the tribes were greatly weakened. At this point, the tribes were greatly divided over whether to continue fighting, as the elder leaders saw little chance of victory. Wright then killed over 800 of the Indians' horses that had been captured throughout the fighting, depriving the tribes of their means to fight and hunt, and showing the extremes that the Army would go to in order to subdue the tribes. The Chiefs of the Coeur d'Alene tribe, who realized that they would not be able to defeat the Army, especially without the aid of their horses, sent a Coeur d’Alene member to Wright’s camp to present their peace proposal.
Wright arrived to meet with the tribes three days later and negotiated a peace treaty, to which the Coeur d’Alene’s and the other tribes agreed to, realizing that they would not be able to defeat the United States troops. The treaty required that the Coeur d’Alene return army property and hand over the individuals responsible for the attack on Steptoe, and give permission for whites to pass through their lands without interference in the future. In return, Wright promised that there would be no more war waged against the Coeur d’Alene people. The tribes turned over those who were responsible, including Qualchan, who had been one of the main leaders throughout, and they were hanged at Latah Creek. Wright's actions opened the mountain valley of the Pacific Northwest to settlement by whites, and forced the tribes onto reservations that consisted of only a fraction of their former lands, where they were quickly struck by disease and malnutrition as a result.
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