Nicholas Staback served in ACO, 1st Battalion, 5th Regiment, 1st Brigade, 25th Infantry Division. He enlisted in the US Army in March 2010 and completed Basic Training at Fort Benning, GA, in July that same year. His first assignment was to Fort Wainwright, Alaska. He deployed to Afghanistan in 2011 and was severely wounded on October 4, 2011, in Kandahar Province.