The
Battle of Arras (also known as the Second Battle of Arras) was a
British offensive during the
First World War. From 9 April to 16 May 1917, British, Canadian, South African, New Zealand, Newfoundland, and Australian troops attacked German defences near the French city of
Arras on the Western Front. There were major gains on the first day, followed by stalemate. The battle cost nearly 160,000 British casualties and about 125,000 German casualties.