A new exhibition at the British Museum explores the mythmaking of Japan’s feudal warriors

The samurai’s history and legacy, Angela Merkel’s 21st-century military and a new aviation festival

There’s no shortage of great picks at this year’s TEFAF Maastricht, the Netherlands, including a Barbara Hepworth sculpture, a pastel portrait by Dora Maar and two sections of 4th-century Roman mosaics

Exhibition of the week Gwen John: Strange Beauties ...

The week’s guide to what’s worth seeing Showing ...

The new Turner Prize (this time, for craftspeople) ...