US Army (USA) Colonel (COL) David Teeples (left center), Commanding Officer, 3rd Armored Cavalry Regiment (ACR), and USA Sergeant Major (SGM) John Caldwell, the Unit SGM, case the 3rd ACR Colors during the Transfer of Authority Ceremony which transferred from the USA 3rd ACR to the US Marine Corps (USMC) 7th Marine Regiment, 1ST Marine Division, in Al Asad, Iraq, during Operation IRAQI FREEDOM