This show explores what the First World War did to a generation of young artists who came to it full of the joys of modernity and emerged with a sense of inadequacy.
It draws together a group of artists who studied at the Slade School of Art before the war that profoundly affected them all.
C R W Nevinson and Paul Nash used the fractured forms of vorticism, while Stanley Spencer's Unveiling Cookham War Memorial is a moving picture of grief and disbelief. But none of them felt they had an art equal to the occasion. The exhibition is a revealing, painful one.
020 8693 5254; dulwichpicturegallery.org.uk to 22 September