One thousand extra US troops are being deployed in the Middle East, as the Pentagon releases images they allege is proof of Iran’s involvement in the attacks on a Japanese and a Norwegian oil tanker. Is President Trump risking another war in the Gulf? We hear from the US Army’s former Chief of Staff, retired General Jack Keane, and EU foreign policy adviser, Nathalie Tocci. (Image: Oil tanker in the Gulf, credit: Getty Images)