Capt. Joseph Graves, a platoon commander with Company G, 2nd Battalion, 25th Marine Regiment, works with an Iraqi police officer role player to defuse a public disturbance during a training exercise July 21, 2008. Although he served as a communications officer while on active duty, Graves had the opportunity to go infantry in the reserves. The Marine Corps Reseve has many command billets available at the platoon and company level for officers leaving active duty.