| Term | Definition |
| aggression | unprovoked attack; warlike act; encroachment by one nation on the territory of another |
| assailant | person who violently attacks with blows or words; attacker |
| belligerent (adj) | fond of fighting; warlike; quarrelsome; pugnacious |
| belligerent (n) | nation engaged in a war; person involved in a fight; warrior |
| implacable | unable to be mad peaceful; unappeasable; unrelenting; unforgiving |
| intimidate | make fearful; frighten; scare; discourage from acting by threats or violence |
| invincible | incapable of beign vanquished; insuperable; insurmountable |
| mercenary (n) | soldier serving for pay in a foreign army |
| mercenary (adj) | serving merely for pay or gain; greedy |
| pugilist | prizefighter; boxer; person who fights with fists |
| strife | bitter conflict; fighting; discord; antagonism |
| vanquish | subdue by superior force; conquer; defeat; ovecome |