维护和平

• preserve peace
• maintain peace

例句

1. 所以我说，历史证明，我们懂得如何去维护和平，并且不需要投降。
   And so I say, that the records show that we know how to keep the peace, to keep it without surrender.
2. 这一政策旨在维护和平。
   The aim of the policy is the preservation of peace.