The 18th Military Police Brigade saw multiple deployments in the Global War on Terrorism to the Iraq War. Its primary responsibilities have been to train and equip the national Iraqi Police forces.
Operation Iraqi Freedom Iraq 2007–2008
The brigade returned to Iraq in 2007 The 127th and 630th Military Police Companies began serving in Iraq in support of Operation Iraqi Freedom II in mid-2007.[3] The 127th Company served in Iskandariyah, on patrol operations with local police.[8] In November 2007 the Headquarters and Headquarters Company of the brigade and the 793rd Military Police Battalion deployed to Iraq in support of Operation Iraqi Freedom III.