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

2002

• The seven member crew of the ill-fated KC-130 Hercules that crashed 9 January in Pakistan was faulted in the crash that took their lives according to the investigation report released. The report stated that the crew stopped navigating by instruments and flew too far away from the field at too low of an altitude. None of the crew was found to be negligent or guilty of misconduct.
• Start of Operation Herrick in Afghanistan

2003

• The Marine Corps introduced its contribution to the U.S. Special Operations Command with the activation of an elite 86-man unit known as Marine Corps Detachment One. The commando unit, housed at the Camp Del Mar Boat Basin, consists of a headquarters, reconnaissance, intelligence, and fire-support elements.

Casualties on June 20:

• WHITE, RUSSELL PATRICK – June 20, 2004
• KILPATRICK, CHRISTOPHER REED – June 20, 2005
• LEON, CHRISTOPHER DAVID – June 20, 2006
• WEBB, BRANDON JAMES – June 20, 2006
• WHITE, CHRISTOPHER NEAL – June 20, 2006
• WILLIAMS, BENJAMIN DEWAYNE – June 20, 2006
• BENTZ, DAVID JOHN III – June 20, 2007
• BROOKSHIRE, SID WILLIAM – June 20, 2007
• CHARFAUROS, JOE GOGUE JR – June 20, 2007
• HUBBELL, DARREN PATRICK – June 20, 2007
• MARTIN, SHAWN PAUL – June 20, 2007
• WILSON, STEPHEN J – June 20, 2007
• BURNETT, DUSTIN KELBY – June 20, 2008
• MENDOZA, MATTHEW ELIAS – June 20, 2008
• TRAN, DU HAI – June 20, 2008
• BLAIR, JOHN DAVID – June 20, 2009
• GARBER, JEFFREY JAMES – June 20, 2009
• HARVEY, JAMES WILLIAM II – June 20, 2011
• JETTON, JOSHUA LYNN – June 20, 2011
• RIOS ORDONEZ, GUSTAVO ADOLFO – June 20, 2011
• MEADOR, JOHN DAVID II – June 20, 2012
• RAWL, RYAN DAVIS – June 20, 2012
• THOMAS, MATTHEW BRADFORD – June 20, 2012
• GARABRANT, BRANDON JOHN – June 20, 2014
• STEWART, DAVID HAMILTON – June 20, 2014
• WOLFF, ADAM FRANKLIN – June 20, 2014