Also known as the 1973 Arab-Israeli War and the Fourth Arab-Israeli War: a coalition of states led by Egypt and Syria attempt for the third time to conquer Israel. The war began with a surprise joint attack by Egypt and Syria on Yom Kippur, the Jewish day of atonement. Egypt and Syria crossed the cease-fire lines in the Sinai and Golan Heights, respectively, which had been captured by Israel in 1967 during the Six-Day War. OPEC limits the out flux of crude oil to world markets in response.
Editors. "Yom Kippur War". The Literary Encyclopedia. First published 01 February 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=3569, accessed 03 August 2015.]