On 23 October, 241 U.S. Marines and sailors were killed in Lebanon when a TNT-laden suicide bomb exploded at the Marine barracks at Beirut International Airport. This event precipitated a U.S. withdrawal from Lebanon.
Richert, Lucas Paul. "U.S. military attacked in Beirut". The Literary Encyclopedia. First published 01 November 2008
[http://www.litencyc.com/php/stopics.php?rec=true&UID=5720, accessed 20 June 2013.]