These included Marines from the 15th Marine Expeditionary Unit, 31st Marine Expeditionary Unit, the 2nd Battalion 4th Marines, the 1st Battalion 6th Marines and the 3rd Battalion, 4th Marines. Most of the 150,000 Army personnel had their 12-month tours extended as well. By July, 2007, the percentage of the mobilized Army deployed to Iraq and Afghanistan was almost 30%; the percentage of the mobilized Marine Corps deployed to Iraq and Afghanistan was 13.5%.[54]