Mediterranean: MONTE CASSINO BOMBARDED. Ancient Abbey of Monte Cassino shattered by Allied bombers and artillery fire. 135 B-17 Fortress and medium bombers drop 493 t HE and IEs. 400 Italian women and children refugees killed inside Abbey – which is not occupied by Germans until after the bombardment.
Pacific: Japanese convoy smashed by US bombers off New Hanover (near Rabaul).
Poland: Polish Government-in-exile in London rejects Soviet proposal that the Curzon Line (322 km west of 1939 Russo-Polish frontier) should now be post-war frontier.