外がい敵てき

noun

foreign enemy; outside invader

Refers to an enemy or threat from outside one's country, group, or territory. Often used in military, political, or biological contexts.

• 国くには外がい敵てきから領りょう土どを守まもらなければならない。

  The country must defend its territory from foreign enemies.

• 免めん疫えきシステムは外がい敵てきから体からだを守まもる。

  The immune system protects the body from outside invaders.