The First Battle of the Stronghold (January 17, 1873) was the second battle in the Modoc War of 1872–1873. The battle was fought between the United States Army under Lieutenant Colonel Frank Wheaton and a band of the Native American Modoc tribe from Oregon and California, led by Captain Jack. The United States Army was attempting to remove the Modoc from the natural fortress, Captain Jack"s Stronghold, in the lava beds on the south shore of Tule Lake in northeastern California, and return them to the Klamath Reservation in Oregon. The Modocs soundly defeated the Army, forcing it to retreat. The Modoc victory was due to their excellent defensive position, steady patience, and thick fog.