ISIS to Afghanistan: What Role Can NATO Play?

I’m Jack Keane, retired four-star general, former Vice Chief of Staff of the U.S. Army and a member of The Cipher Brief network. In the wake of the Manchester attack, how do we fight ISIS? As President Donald Trump attends his first NATO meeting, what role can the alliance play? What should Nato’s strategy be elsewhere in Afghanistan and Russia? Here’s my perspective In My Own Words, no holds barred.