belligerent|belligerents

这两个交战国家已经打了三年仗。

The two ___belligerent countries have been at war for three years.

敌对双方同意停火以交换战俘。

The ___belligerents agreed to a ceasefire to exchange prisoners of war.

他喝醉后变得好斗起来，开始挑衅酒吧里的其他人。

After getting drunk, he became ___belligerent and started picking fights with others in the bar.