Which of the following locations did the UDT invade?

The Underwater Demolition Teams (UDT) were specially trained units within the United States Navy that played a significant role during World War II, particularly in amphibious warfare. The correct answer, Saipan, refers to one of the key locations where UDTs conducted operations.

During the invasion of Saipan in 1944, UDT units were tasked with clearing obstacles from the beaches to facilitate the landing of larger forces and equipment. Their work was critical in ensuring the success of the amphibious assault, as they neutralized hazards that could endanger troops and vehicles landing on the beaches, such as submerged mines and enemy fortifications.

In contrast, while Germany and North Korea were significant locations during various conflicts involving U.S. military forces, they were not specifically associated with UDT operations. Hawaii is more known as a base for military operations and training rather than a site of UDT invasion. Thus, Saipan remains the clear and accurate choice reflecting the historical involvement of UDTs in direct amphibious assaults.