He spent part of the war in the National Guard.

他战时在国民警卫队服役了一段时间。

matters of war and peace.

战争与和平的问题。

They've been at war for the last fifteen years.

过去十五年他们一直处于战争状态。

The most important thing is to reach an agreement and to avoid a trade war.

最重要的就是达成协议，避免贸易战。

She has been involved in the war against organized crime.

她参与了打击有组织犯罪的斗争。

Do you think this crisis can be settled without going to war?

你认为不发动战争就能解决这场危机吗？