On October 1973, the Organization of Arab Petroleum Exporting Countries (OAPEC) began an oil embargo against America, Europe, and Japan because of U.S. involvement in the Yom Kippur War between Israel and an Arab coalition effort led by Egypt and Syria. America, in an effort to help Israel defend itself against the Arab coaltion, supplied the Israeli military and this angered the Arab coalition. As a result, OAPEC stopped their supply of oil to the North Atlantic Treaty Organization (NATO) countries which inlcuded the U.S. This led to a huge oil price increase that put pressure on the U.S. The war eventually cooled down and American negotiators managed to help bring a ceasefire to the area, and consequently end the oil embargo in March 1974. As always, all this and more information on OAPEC, the Middle East, the Yom Kippur War, and the American energy crisis of the 1970s is available at your Jacinto City Library.