Operation Chesterfield was the assault by Canadian and Polish forces on the

Hitler Line The Hitler Line was a German defensive line in central Italy during the Second World War. The strong points of the line were at Piedmonte, Pontecorvo and Aquino. In May 1944, the line was renamed the Senger Line, after General von Senger und E ...

, on May 23-24 1944 during

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

. The Hitler Line was a German fortified defensive line south of Rome. Initial attempts to penetrate the defenses before they had been effectively manned had failed and a set piece, prepared assault became necessary. The action was hard-fought and the Germans launched repeated counterattacks over the two days, attempting to retake their former positions. Ultimately, Allied forces of the

1st Canadian Division The 1st Canadian Division (French: ''1re Division du Canada'' ) is a joint operational command and control formation based at CFB Kingston, and falls under Canadian Joint Operations Command. It is a high-readiness unit, able to move on very short ...

5th Canadian Armoured Division Fifth is the ordinal form of the number five. Fifth or The Fifth may refer to: * Fifth Amendment to the United States Constitution, as in the expression "pleading the Fifth" * Fifth column, a political term * Fifth disease, a contagious rash that ...

and

II Polish Corps The Polish II Corps ( pl, Drugi Korpus Wojska Polskiego), 1943–1947, was a major tactical and operational unit of the Polish Armed Forces in the West during World War II. It was commanded by Lieutenant General Władysław Anders and fought wit ...

penetrated the Hitler line and the German defenders had to retreat, in some disorder.The Italian Campaign: Breaking the Hitler line
– ''CBC Digital Archives'' – ''Medium''-Radio/''Program''-CBC Radio News/ ''Broadcast Date''-May 23, 1944 A corresponding same-day American breakout at the

Anzio beachhead The Battle of Anzio was a battle of the Italian Campaign of World War II that took place from January 22, 1944 (beginning with the Allied amphibious landing known as Operation Shingle) to June 5, 1944 (ending with the capture of Rome). The op ...

further weakened the German situation in Italy.

References

Italian campaign (World War II) Land battles of World War II involving the United Kingdom Military operations of World War II involving Germany Battles of World War II involving Canada Military history of Canada during World War II May 1944 events {{Canada-mil-hist-stub