Soldiers from the Iraqi Army's 1st Brigade, 4th Division and the U.S. Army's 101st Airborne Division's 3rd Brigade Combat Team receive a pre-flight briefing from a UH-60 Black Hawk crew chief at Forward Operating Base Remagen, Iraq, prior to the start of Operation Swarmer on March 16, 2006. Operation Swarmer is a combined air assault operation to clear the area northeast of Samarra of suspected insurgents.