All-wheel mechanic Spc. Catlynn Kovacs from Colorado Springs, Colo., assigned to Headquarters Support Company, Division Special Troops Battalion, 1st Cavalry Division, checks each part of a new engine on a Mine-Resistant Ambush-Protected vehicle at Camp Liberty, Baghdad, Iraq, Sept. 9. "It's a big job; we use our experience to piece things together as we go," said Kovacs. "We're always learning new things because the vehicles are changing and evolving."