Courtesy of Retired Sgt. 1st Class Debra Kay MooneyWASHINGTON (Army News Service) -- This Memorial Day, Americans will remember those service members who died while serving.Retired Sgt. 1st Class Debra Kay Mooney said that on this upcoming Memorial Day, and every other day of the year, she remembers the fallen she served with in the Oklahoma Army National Guard.As a combat engineer, Mooney served in both the first and second battles of Fallujah that occurred in 2004.She said she often thinks of Spc.