In Italy… Most Allied forces of the US 5th Army meet reduced resistance to their ongoing offensive. Only the Polish 2nd Corps, at Cassino, continues to have difficulty. The British 13th Corps and the Canadian 1st Corps, in the Liri Valley, are advancing toward Pontecorvo and Piumarola. The US 2nd Corps advances along the western coast. The French Expeditionary Corps capture Monte Petrella and advance toward Monte Revole.

In New Guinea… American forces move from Hollandia toward Wadke Island.

On the Eastern Front… Soviet aircraft bomb railway targets in Minsk.

In London… The Allies sign agreements with Belgium, the Netherlands and Norway concerning their administration during the immediate post-liberation period.

In the Norwegian Sea… British Coastal Command planes are active against German submarines. A total of 5 U-boats are sunk off Norway, and 3 others seriously damaged, between May 16 and May 31.