The requirement of in-water programming is usually what sets one military training path apart from others. Challenging water survival, water confidence and swimming tests can often be a deal breaker for many as they are selecting a military job during recruitment.
The Navy, Marine Corps and Coast Guard have an obvious need for training their personnel in water safety and survival, but many of the Special Ops diving communities also have intensive training in and under the water. This includes Navy SEAL, SWCC, EOD, Rescue Swimmers, Air Force Special Warfare, Marine RECON and MarSOC and Army Special Forces Dive Training.