Red Cloud was the Lakota chief who is noted for winning the greatest victory against the United States. Also referred to as the Bozeman War or the Powder River War, Red Cloud's War was fought over rights to the Wyoming-Montana territories surrounding what was known as the Powder river country. After gold was discovered in the Montana territory the federal government began building a series of forts along the Powder River. Red Cloud and the Lakota Souix saw this as an infringement upon their lands. The defeat of Lieutenant Colonel William Fetterman's men outside Fort Phil Kearney, Wyoming territory ultimately led to the Fort Laramie Treaty of 1868. The treaty closed all forts along the Bozeman trail and guaranteed the Lakota specific land rights by defining boundaries.