http://www.onwar.com/chrono/1944/may44/23may44.htm#
Canadians break the Senger Line
Tuesday, May 23, 1944 www.onwar.com
Canadian troops on the march in Italy [photo at link]
In Italy... The US 6th Corps in the Anzio beachhead launches an attack on Cisterna. German resistance results in high Allied casualties. Meanwhile, the US 5th Army continues offensive operations. US 2nd Corps patrols reach Terracina. Both the French Expeditionary Corps and the Canadian 1st Corps penetrate the German-held Senger Line. The Canadians break through by the end of the day.
In New Guinea... American forces encounter heavy resistance in their advance westward from Arare toward Sarmi. At Aitape, Japanese attacks continue to force the Americans to fall back.
In Wake Island... US Task Group 58.2 (Admiral Montgomery) launches air raids on Japanese positions.
In China... Chinese forces launch a counteroffensive in Honan Province.
In Occupied France... Paris radio announces that the railway system is in chaos.