但是，非国家行为者则难以遏制。

But non-state actors are harder to deter.

youdao

他们很少或没有与非国家行为者的联系。

They have little or no relevance to non-state actors operating by stealth.

youdao

威慑的概念对国家行为者所熟悉，但在世界多个核大国。

The concepts of deterrence against state actors are familiar, though not in a world of multiple nuclear powers.

youdao