They are playing an increasingly important part [role] in safeguarding peace.

他们对保卫和平起着越来越重要的作用。

They are playing an important role in safeguarding peace.

他们在保卫和平中起着重要作用。

They are playing an increasingly important role in safeguarding peace.

他们在保卫和平中起着日益重要的作用。

Peace is one of the most valuable assets and safeguarding peace through dialogues is the most dependable.

他说，和平最可贵，通过对话争取和维护和平最可靠。

We hope relevant parties be jointly committed to safeguarding peace and stability on the Peninsula and in Northeast Asia.

我们希望有关各方共同致力于维护半岛和东北亚地区的和平稳定。