In the December 2015–January 2016 issue, Gordon Barrass revisits the story of Able Archer 83; Ash Carter explains the United States’ developing policy towards Russia; Jennifer Harris urges a geopolitical approach to TTIP; Hal Brands and Peter Feaver question the current assumptions governing US grand strategy; Lora Saalman identifies the lessons China has drawn from the Ukraine crisis; Richard Hooker explores the role of American airpower in modern war; Emile Hokayem and David Roberts analyse the war in Yemen; Matthew Harries discusses Britain’s post-referendum politics; Massimo Franco outlines the Vatican’s relationship to the US presidential candidates; Mark Gilbert and Shashank Joshi contribute review essays; Jeffrey Mazo, David Unger, Hanns Maull and Jonathan Stevenson review new books; and Dana Allin confronts the prospect of a Trump presidency.