Which of the following are true about Operation Shingle landing at Anzio Beach?

The statement that the Operation Shingle landing at Anzio Beach occurred on 22 January 1944 is indeed correct. This operation was a significant Allied amphibious assault during World War II aimed at outflanking German defenses in Italy. The choice provides a crucial date that marks the beginning of the landing operation, which was part of the larger Italian Campaign.

Understanding the date aids in contextualizing the operation within the broader timeline of World War II, highlighting its strategic significance as the Allies worked to take control of Rome and push German forces back. The other details surrounding the operation, while they may pertain to the consequences and responses, do not impact the factual accuracy of the date provided in this choice.