Local Afghan children watch U.S. Marines with Echo Company, 4th Tank Battalion, 1st Combat Engineer Battalion (CEB) and Afghan National Army (ANA) soldiers with 1st Kandak, 1st Brigade, 215th Corps (1/1/215) in Trek Nawa, Helmand province, Afghanistan, June 28, 2012. 1st CEB supported 1/1/215 during Operation Ibtikar 1 Echo.