The UN dispatched a peacekeeping force to the conflict zone.
The unit was dispatched to the front line.
救助部隊が現場に向かった。
A rescue party headed to the scene.
He commanded his unit on the front line.
It's necessary to form a new unit.
The unit withdrew after coming under enemy attack.
He was assigned to a special forces unit.
隊 is a broader, lighter suffix for any organized group (捜索隊, 消防隊), while 部隊 specifically implies a formal military or organizational unit.
部隊 is a broad, general term for any military unit, while 戦隊 usually refers to a smaller, specialized combat unit or a superhero-style team.
部隊 is a general term for a military unit or troops of any size, while 分隊 specifically denotes the smallest unit, a squad or section.
部隊 is a general, size-neutral term for a military unit, while 軍団 specifically denotes a large corps or a big, tightly-knit group.
部隊 (troop unit) and 舞台 (stage, as in theater) are pronounced identically but are completely unrelated in meaning and written with different kanji.
battalion; large force
enemy forces; enemy unit
rear guard; rear guard unit
commanding officer; unit commander
main force; main troops
Compound of 部 (section, division) and 隊 (group, corps). The combination has been used since the Meiji era to translate Western military concepts of organized units.
frontline troops
advance troops; advance unit