also for blocking the river traffic carrying materiel north from the Persian Corridor. The Battle of Stalingrad (23 August 1942 – 2 February 1943) reopened the river. See also History of Iran Mediterranean and Middle East Theatre Military history of the Soviet Union Polish contribution to World War II Anglo-Soviet invasion of Iran Anglo-Russian Treaty of 1907 Royal Road Operation cedar Burma Road Notes External links Trucks Lend Leased to Russia amateur history page with detailed maps and statistics A Forgotten Odyssey website Logistics routes of World War II 1940s in Iran Iran in World War II 20th-century military history of the United States Middle East theatre of World War II Transport in Iran Pahlavi Iran Iran–Soviet Union relations Iran–United States relations Soviet Union–United States relations 1940s in Azerbaijan Foreign trade of the Soviet Union