Short answers, pulled from the story.
The landings began on the 22nd of January 1944 and concluded with the final operations in late May 1944. The campaign lasted from the initial invasion until the German Tenth Army escaped destruction around the 26th of May 1944.
Winston Churchill conceived Operation Shingle while recovering from pneumonia in Marrakesh in December 1943. Dwight D. Eisenhower left the decision to Churchill before departing for Operation Overlord, allowing the British Prime Minister to revive the plan after his recovery.
Clark replaced Lucas with Truscott on the 22nd of February 1944 and appointed Lucas deputy commander Fifth Army. Churchill criticized Lucas's caution by stating they had hoped to hurl a wildcat into shore but received a stranded whale instead.
The battle cost 24,000 U.S. and 10,000 British casualties during the entire campaign period. These losses included heavy tank and infantry damage during the intense fighting that began on the 23rd of May 1944.
Eric Fletcher Waters father of Pink Floyd bassist Roger Waters died as 2nd Lieutenant with Royal Fusiliers at Anzio. Young-Oak Kim Korean-American served with the same unit becoming first officer of any minority to command battalion in combat in U.S. History during the Korean War.