Three more key European countries and an American expert give us their perspectives on how to respond to Putin, given President Trump's decision to conciliate him.

William Browder, Head, Global Magnitsky Justice Campaign
Vadym Chernysh, Minister for Temporarily Occupied Territories and IDPs of Ukraine
Mikk Marran, Director General, Estonian Foreign Intelligence Service
Andrew Pike, Director of International Communications, 10 Downing Street
Moderator: Courtney Kube, National Security & Military Correspondent, NBC News

Recorded live at the 2018 Aspen Security Forum.