- Peter Bergen says there are many ways to make progress in the fight against ISIS and a number of those aren't military in nature
- The anti-ISIS effort seems to be at a stalemate, he says
Peter Bergen is CNN's national security analyst, vice president at New America and a professor of practice at Arizona State University. He is the author of "Manhunt: The Ten-Year Search for bin Laden -- From 9/11 to Abbottabad."
(CNN)On Tuesday, President Obama meets in New York with world leaders to discuss how the campaign against ISIS is going and how it might be improved.