WW2 War Diary for Saturday, July 17, 1943:
Sea War
Mediterranean: Battleship HMS Warspite bombards Catania.
Mediterranean
Sicily: US Rangers capture Agrigento.
Occupied Territories
Sicily: AMGOT (‘Allied Military Government of Occupied Territories’) established in Sicily.
Air War
Pacific: 223 Allied planes attack shipping off Bougainville (1 destroyer sunk).