Relatives attend a joint funeral for the 18 military servicemen killed in a helicopter crash, at the National Funeral House in Hanoi July 11, 2014. The military helicopter crashed into a residential area on the fringes of Vietnam's capital Hanoi on Monday, killing 18 people and seriously injuring three, the army said. The Soviet-era MI-171 helicopter was on a training flight when it went went down early in the morning, said Lt-Gen. Vo Van Tuan, deputy chief of staff of the army. REUTERS/Kham (VIETNAM - Tags: MILITARY OBITUARY)