The following are events related to the Global War On Terrorism (GWOT) that took place on this day.

2002

• Start of Operation Mountain Sweep in Afghanistan

2003

• Assistant Commandant of the Marine Corps General William Nyland visited Djibouti to congratulate CJTF-HOA personnel on a job well done. He also reiterated the importance of their mission there. After his speech, Gen Nyland answered questions from service members and took pictures with many of those among the crowd.

2004

• The redeployment of the 22d MEU (SOC) finally got under way less than a week after the unit was informed that its deployment was to be extended for another thirty days. The extension came only days after the Combat Action Ribbon was approved for the Marines and sailors of the unit who participated in combat operations in south-central Afghanistan from 25 March through 10 July 2004.
• Operation Showdown in Iraq

2008

• Raid Report – August 18, 2008

Casualties on August 18:

• HULL, ERIC RAYMOND – August 18, 2003
• FITZGERALD, DUSTIN ROBERT – August 18, 2004
• LORD, RICHARD MURLE – August 18, 2004
• MARTIR, JACOB DAVID – August 18, 2004
• PARKERSON, HARVEY EMMETT III – August 18, 2004
• RISNER, HENRY CECIL – August 18, 2004
• DAVIS, ROBERT GENE – August 18, 2005
• GEORGE, PHILLIP CARSON – August 18, 2005
• WALKER, LAURA MARGARET – August 18, 2005
• BOUCHARD, NATHAN KALANI – August 18, 2005
• DOYLE, JEREMY WADE – August 18, 2005
• FUHRMANN, RAY MICHAEL II – August 18, 2005
• SEAMANS, TIMOTHY JAMES – August 18, 2005
• VILLA, RUBEN JR – August 18, 2006
• BENJAMIN, ADAM FRANK – August 18, 2009
• BOWEN, CLAYTON PATRICK – August 18, 2009
• CRISOSTOMO, JOSE SAN – August 18, 2009
• WALKER, MORRIS LEWIS – August 18, 2009
• YANNEY, JONATHAN CHRISTOPHER – August 18, 2009
• ORATOWSKI, KEVIN EDWARD – August 18, 2010
• THOMAS, COLLIN TRENT – August 18, 2010
• NELSON, TRAVIS MICHAEL – August 18, 2011
• WILLIAMS, DAVID VINCENT – August 18, 2012
• SANTOS, TIMOTHY GEORGE JR – August 18, 2013