Diary for Sunday, April 20, 1916:
India: Nearly 400 casualties in rioting between Sikhs and Moslems at Ahmedabad, Bombay (April 18-20).
Mediterranean – Bombardment of Tripoli: British battleships Warspite , Valiant , Barham and cruiser Gloucester fire 530 t. of shells, damaging 7 ships and setting fire to oil installations (night April 20-21). Valiant damaged by mine while returning to Alexandria.
US-Canadian agreement on joint production of war materials for Britain.