In 1924 and 1925, the Soviet Union and Afghanistan engaged in a conflict over the island of Urtatagai. The conflict ended with a peace treaty wherein the Soviet Union recognized the island as part of Afghanistan, and Afghanistan was forced to restrain Basmachi border raids. In 1929, during the Afghan Civil War (1928–1929), the Saqqawists revoked the treaty upon coming to power. Subsequent Basmachi incursions from northern Afghanistan prompted the beginning of the Red army intervention in Afghanistan, which succeeded at reducing Basmachi offensive capabilities. A small Basmachi resurgence in late 1929 and early 1930 prompted a second intervention.