The United States European Command (EUCOM) is one of nine Unified Combatant Commands of the United States military, headquartered in Stuttgart, Germany. Its area of focus covers 21,000,000 square miles (54,000,000 km) and 51 countries and territories, including Europe, Russia, Greenland, and Israel. The Commander of the United States military EUCOM simultaneously serves as the Supreme Allied Commander, Europe (SACEUR) within NATO—an intergovernmental military alliance. During the Gulf War and Operation Northern Watch, EUCOM controlled the forces flying from Incirlik Air Base.