The terrorist attacks on September 11, 2001 marked the start of the global war on terror. The Cannon Cockers were ready when the order was given to deploy. Beginning in 2003, the 11th Marine Regiment actively participated in Operations Enduring Freedom and Iraqi Freedom. This included deploying as a regiment to Kuwait and Iraq in January–May 2003. From 2004–2009, elements from the Regiment deployed in support of all major contingency operations in Iraq and Afghanistan. In 2009, the world's focus shifted towards the Afghanistan area of operations. From 2009 to present day, Cannon Cocker batteries have supported Operation Enduring Freedom without any lapse in coverage. Most recently, elements of the 11th Marine Regiment participated in the fight against the Islamic State in Syria as a part of Operation Inherent Resolve.