Which operation featured the extensive involvement of UDTs in the Pacific Theater?

The extensive involvement of Underwater Demolition Teams (UDTs) in the Pacific Theater is particularly highlighted during the Battle of Iwo Jima. This battle, which took place in February and March of 1945, required detailed amphibious assault planning, and the UDTs played a critical role in preparing for the landings. Their primary mission was to conduct reconnaissance and clear beaches of obstacles and mines to ensure safe passage for the main forces.

During the Iwo Jima operation, UDTs were tasked with demolishing underwater barriers and surveying landing sites, which was vital due to the challenging terrain and heavy Japanese fortifications. Their efforts enabled the Marine Corps to land effectively and meet minimal resistance upon arrival at the beach, contributing significantly to the overall success of the operation.

The other battles mentioned saw varying degrees of amphibious operations, but none showcased the specific involvement of UDTs to the same extent as Iwo Jima, where their specialized skills were essential to the success of the landings.