Where was UDT training primarily established?

UDT training, which stands for Underwater Demolition Team training, was primarily established in San Diego, California. This location became the main hub for training personnel in the techniques and skills necessary for underwater demolition and reconnaissance missions during World War II and beyond. San Diego offered the ideal climate and ocean conditions for rigorous training exercises, which included swimming, diving, and explosive ordnance handling.

While other locations mentioned, such as Pearl Harbor and Virginia Beach, have played significant roles in various naval operations and training, they did not serve as the primary establishment for UDT training. Instead, San Diego's facilities and resources were pivotal in developing and advancing the capabilities of UDT teams, which eventually transformed into the modern Navy SEALs.