The president’s rhetoric will encourage Putin to test American resolve.

Strategic prudence argues in favor of pocketing successes rather than pressing the fight and running the tantamount risks.

The Russian leader gave the Egyptian president an assault rifle as part of a global tour to show that he's not so isolated after all.

We’re the strong ones in this conflict, and we deter more effectively when we act with confidence on that knowledge.

Ordinary people, when seduced by violent ideologies, can be extraordinarily brutal.

And other stories from eight years running The Washington Post

As the country's currency weakens, so do its armed forces.

A utopian Russian novel predicted Putin’s war plan.

On the meaning of “We are still here.”

And stop Putin before other dictators follow his lead.