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

2003

• Marines launched a diversionary attack near An Nasiriyah to assist in the rescue of an Army prisoner of war by U.S. special forces from the hospital she had been held at since her capture ten days earlier. The bodies of several soldiers killed in the same firefight were also recovered from the grounds of the hospital.
• 101st Airborne Division relieves 3d Infantry Division at An Najaf.

2004

• End of Operation Ripper Sweep in Iraq

2005

• Start of Operation Outer Banks in Iraq

2007

• The Marine Corps officially stood up the Wounded Warriors Regiment whose mission was to help injured Marines through their recovery and an often difficult bureaucracy. The regiment is headquartered at Marine Corps Base (MCB) Quantico, Virginia, but has two established battalions, one on the west coast and another on the east coast.
• End of Operation Arrowhead Strike 9 in Iraq
• End of Operation Enduring Education in Iraq
• End of Operation Black Eagle City in Iraq

Casualties on April 01:

• BUTLER, JACOB LEE – April 1, 2003
• MAGLIONE, JOSEPH BASIL – April 1, 2003
• SEKULA, DUSTIN MICHAEL – April 1, 2004
• RIMES, GARRYWESLEY TAN – April 1, 2005
• CLAY, DARRELL PATRICK – April 1, 2006
• DEVORA-GARCIA, ISRAEL – April 1, 2006
• HARTWICK, MICHAEL LEE JR – April 1, 2006
• MOSHIER, TIMOTHY J – April 1, 2006
• ARNETTE, JASON RUSSELL – April 1, 2007
• BOWLING, WILLIAM GLENN – April 1, 2007
• MARCIAL, MIGUEL ANGEL III – April 1, 2007
• MCDOWELL, ROBERT MATTHEW – April 1, 2007
• MEJIAS, DAVID ALFONSO – April 1, 2007
• VICK, ERIC REID – April 1, 2007
• GRIFFIN, TYLER OWEN – April 1, 2010
• WORLD, FRANK JOSEPH-ALFONSO – April 1, 2010
• CHAFFIN, JAMES EDWARD III – April 1, 2014