At the time, none of his sons appeared ready to assume the mantle of leadership, spawning fears of a dangerous power vacuum in the nuclear-armed nation.

那时，他的儿子们还没有一个做好了披上权力斗篷的准备，这个手握核武的国家可能出现的极度危险的权力真空着实让整个世界惊出一身冷汗。

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We have the rare opportunity to seize the mantle of national leadership.

这次是我们担当国家领导职责的天赐良机。

《柯林斯英汉双解大词典》

And the mantle of leadership for promoting the principles of peace has fallen to America.

WHITEHOUSE: The White House

And within the context of the unrest we've seen in the region, it would obviously be a healthy development that someone who claims the mantle of leadership and yet brutalizes his own people ruthlessly be removed from power or remove himself from power -- that would be a positive development, within the context of the unrest that you're referencing.

WHITEHOUSE: Press Briefing

But while these men - who are themselves competing for the leadership mantle - are the face of the NTC, it is unclear who stands behind them.

CENTERFORSECURITYPOLICY: America's descent into strategic dementia