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

2004

• Start of Operation Iron Fist II in Iraq

2007

• About 200 Marines with Marine Light Attack Helicopter Squadron 269 (HMLA-269) returned to MCAS New River from Iraq.

2008

• Marines with 2d Battalion, 9th Marines, began deploying to Al Anbar Province in support of Operation Iraqi Freedom.

Casualties on September 23:

• DERRICK, ANDREW JOSEPH – September 23, 2005
• NEUBAUER, PAUL CHRISTIAN – September 23, 2005
• DOMINGUEZ, CARLOS – September 23, 2006
• KINCAID, KENNETH ELLSWORTH IV – September 23, 2006
• LOCKLEAR, VELTON III – September 23, 2006
• BLASKOWSKI, MATTHEW DEAN – September 23, 2007
• BROWN, THOMAS JOSEPH – September 23, 2008
• ROSA, ANTHONY JAMES – September 23, 2010
• APARICIO, CARLOS ARTURO – September 23, 2011
• BIGAI BAEZ, RAFAEL ENRIQUE – September 23, 2011