There are increasing signs that Mr Obama is deeply discomfited by the war that he had declared in his election campaign to be a "war of necessity".

越来越多的迹象显示，奥巴马在竞选期间宣称的这场“必要之战”已使他深感为难。

youdao

The use of the drone is, therefore, violating the war-fighting principles of distinction, necessity, proportionality, humanity.

因此，无人驾驶飞机的使用，违反了区分性，必要性，相称性，人道性等作战原则。

youdao

But with the further deepen of European integration and the end of the Cold War, the necessity and legitimacy of the integration are questioned.

但随着欧洲一体化的进一步加深及冷战的结束，一体化的必要性和合法性受到质疑。

youdao

Anything less than that is trying to fight a war of necessity on the cheap,".

VOA: standard.2009.11.16

The evidence thus far leads to the conclusion that this was a war of choice and not a war of necessity.

CNN: Commentary: What the Iraq mission cost Bush

Perhaps his most important insight, however, was the necessity of waging and winning a war of ideas.

CENTERFORSECURITYPOLICY: The War of Ideas

It seems I'm not the only conservative in America who has doubts about the necessity of a nation-building war strategy.

CNN: My hardest decision: Saying no to Afghanistan war