U.S. Army Chief Warrant Officer 4 Mike Eger, left,

U.S. Army Chief Warrant Officer 4 Mike Eger, left, a pilot with the 2nd Battalion, 135th Aviation Regiment, Colorado Army National Guard, and Chief Warrant Officer 4 Troy Parmley, a pilot with Delta Company, 3rd Battalion, 148th Aviation Regiment, Colorado Army National Guard, fly a UH-72 Lakota helicopter over flooded areas during relief and recovery operations near Fort Collins, Colo., Sept. 18, 2013. Colorado and Wyoming National Guard units were activated to provide assistance to people affected by massive flooding along Colorado's Front Range. More than 750 guard members have been working with local, state and federal authorities. Colorado Guard members have evacuated about 700 people by ground and military aerial evacuations currently totaling 2,394. (U.S. Army photo by Sgt. 1st Class Jon Soucy/Released)