Participants clap in unison during a cancer awareness run held by the 2nd General Support Aviation Battalion “Lobos,” 227th Aviation Regiment, 1st Air Cavalry Brigade, 1st Cavalry Division, at Hood Army Airfield, Fort Hood, Texas, Oct. 25. About 500 soldiers, family members and friends dressed in pink and yellow during the 5K walk/run or 10K run to show their support for cancer victims and survivors. Half of all men and one-third of all women in the U.S. will develop cancer during their lifetimes, according to the American Cancer Society.