phái đoàn quân sự 
military delegation [ phái ] : to delegate, to send, to detach
[ phái ] : to send, appoint; faction, sect; sex, gender
[ đoàn ] : band, group, union, convoy
[ quân ] : troops, army
[ sự ] : deed, act, action event, occurrence, (classifier for actions, states)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :