Ekaterina Sergatskova

In the years after 2014, ultra-radicals within ISIS began to condemn their leaders and fellow militants—and were hunted down in response.

In Iraq, the war of weapons is over, but the war of information is not.

In our conversations over the last year with several current and former Russian-speaking fighters, which comprise the largest group of foreigners in ISIS, we...

Al Qaeda has used the occasion of renewed violence against Rohingya Muslims in Myanmar to release an unofficial call to arms. The question is who is going to answer...

Those who fight with ISIS are just one group of Chechens now operating in Syria.

The Ukrainian government has managed to stifle the independent armed groups fighting on its side in the war in eastern Ukraine. Its success offers lessons for other...

The U.S.-led operation to reclaim Mosul has created a religious rift within the Islamic State.