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

2004

• Hani Abd al-Latif Tilfah captured. He was the King of Hearts in Iraq’s Most Wanted Deck of Playing Cards.

2005

• The final flight carrying Marines from 3d Battalion, 3d Marines returned home to Marine Corps Base Hawaii after spending eight months in Afghanistan in support of Operation Enduring Freedom. A week earlier, Marines from Marine Air Control Squadron 2 also returned from Afghanistan after completing a six-month deployment and 2d Radio Battalion arrived home from Iraq.

2006

• The Marine Corps announced that seven Marines and one corpsman would face murder charges in the death of an elderly Iraqi man killed in the village of Hamandiyah in April. All eight men were from 3d Battalion, 5th Marines.
• Jared C. Monti, Army, Staff Sergeant, is the recipient of the Congressional Medal of Honor for his actions on 21 June 2006.

2007

• Start of Operation Commando Eagle in Iraq

Casualties on June 21:

• CONTRERAS, PEDRO – June 21, 2004
• LOPEZ, JUAN – June 21, 2004
• OTEY, DESHON ELISCO – June 21, 2004
• PARKER, TOMMY LYNN JR – June 21, 2004
• PENNINGTON, GREGORY VAUGHN – June 21, 2004
• HOSKINS, CHRISTOPHER LEE – June 21, 2005
• IDALSKI, NICHOLAS RYAN – June 21, 2005
• STEWART, JAMES DOUGLAS – June 21, 2005
• VAUGHN, BRIAN ALEXANDER – June 21, 2005
• BUZZARD, JASON JAMES – June 21, 2006
• CUARESMA, SIRLOU CIACHO – June 21, 2006
• WHYTE, NICHOLAS JOHAN – June 21, 2006
• PERROTT, DUSTIN JOHN – June 21, 2007
• AGAMI, DANIEL JAY – June 21, 2007
• CLIFTON, KAREN NICOLE – June 21, 2007
• HEBERT, ANTHONY DAVID – June 21, 2007
• LEEMHUIS, THOMAS RAY – June 21, 2007
• MONTENEGRO, ALPHONSO JUNIOR II – June 21, 2007
• SPENCER, RAYMOND NIGEL JR – June 21, 2007
• VEITCH, JERIMIAH JAMES – June 21, 2007
• WOOD, RYAN MITCHELL – June 21, 2007
• MANGANO, ANTHONY LEONARD – June 21, 2008
• RODRIGUEZ RAMIREZ, NELSON D – June 21, 2008
• SEABROOKS, ANDREW – June 21, 2008
• WALTON, JAMES JOSEPH – June 21, 2008
• JONES, RICKY DEWAYNE – June 21, 2009
• MUNGUIARIVAS, RODRIGO AMILCA – June 21, 2009
• ANDREWS, SCOTT ANTHONY – June 21, 2010
• LOONEY, ANDREW RICHARD – June 21, 2010
• MILLER, DAVID TAYLOR – June 21, 2010
• SERWINOWSKI, TIMOTHY GILES – June 21, 2010
• SILK, BRANDON MARK – June 21, 2010
• DOHRENWEND, JACOB PARKE – June 21, 2010
• VERBEEK, JARED CAMERRON – June 21, 2011