Service members attached to the 2nd Battalion, 501st Aviation Regiment, 1st Combat Aviation Brigade, 1st Armored Division, Task Force Iron Knights, display their Christmas spirit in style as they parade through Spriggs Airfield, Dec. 25, 2014. The Iron Knights celebrated the holiday season through various events throughout the day. Operation United Assistance is a Department of Defense operation in Liberia to provide logistics, training and engineering support to U.S. Agency for International Development-led efforts to contain the Ebola virus outbreak in western Africa. (U.S. Army photo by Sgt. Jose Ramirez, 1st Combat Aviation Brigade, 1st Armored Division/RELEASED)