USA TodayObama pays tribute to fallen troops at Dover Air Force BaseCBS NewsPresident Obama steps off Marine One during his arrival at at Dover Air Force Base, Del., Oct. 29, 2009. The president returned Tuesday, Aug. 9, 2011, to pay tribute to 30 fallen troops. President Obama made an unannounced trip to Dover Air Force Base ...Obama honors US forces killed in helicopter attackLos Angeles TimesObama honors return of fallen troops from AfghanistanReutersRemains of Troops Killed in Helicopter Crash Arrive in U.S.BloombergSan Francisco Chronicle -Westport-Newsall 875 news articles »