入队

入隊
rùduì

to enlist in a military

Wiktionary

Entry Composition

1 入 rù
  1. to enter; to go into
  2. to join; to become a member of
  3. (bound form) to conform to (as in 入时 rùshí)
  4. abbr. for 入声 rùshēng
  5. (on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")
2 队 duì
  1. squadron
  2. team
  3. group

classifier: 個