[te-ran, -rahn, te-huh-, tey-uh-; Pers. te-hrahn]
Teheran, Iran: see Tehran.

(Nov. 28–Dec. 1, 1943) Meeting of Franklin Roosevelt, Winston Churchill, and Joseph Stalin in Tehrān during World War II to discuss military strategy and political issues. Stalin agreed to launch a military offensive from the east to coincide with a planned invasion of German-occupied France from the west. Also discussed but not settled were eastern Europe's postwar borders, including Poland's postwar status, and a postwar international organization.

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or Teheran

City (pop., 2006: 7,797,520), capital of Iran. It is situated on the southern slopes of the Elburz Mountains. It was originally a suburb of ancient Rhagae (Rey), which was destroyed by the Mongols in 1220 and was later the home of several Ssubdotafavid rulers of Persia (16th–18th century). It became prominent after its capture (1785) by Amacrghā Muhsubdotammad Khan, founder of the Qājār dynasty, who made it his capital. It underwent rapid modernization after 1925 and especially after World War II (1939–45). In 1943 it was the site of the Tehrān Conference. In 1979, following the Islamic revolution in Iran, the U.S. embassy there was seized and its staff taken hostage by Iranian militants (see Iran hostage crisis). A transportation and industrial centre, Tehrān produces more than half of Iran's manufactured goods. It is the seat of several educational institutions, including the University of Tehrān (1934).

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