Seals volunteer for this duty and their training is completed only after normal Navy training. Often, sailors who begin Seal training find they don’t have the fortitude to finish training under the extraordinary strain and stress of normal Seal training. Other trainees drop out due to injuries sustained during training, or the inability to perform certain tasks that must be comleted during Seal training. Some Seals attempt the Seal training program more than once before finally succeeding.

Origins of the Navy Seals dates back to 1942. Personnel were needed for a special mission during WWII so members of both the Army and Navy formed a small group to train specially for this mission. Subsequently, other special groups have came into being especially for unconventional missions over the years, and finally in 1966 we see the first named Seal team in action. From there the Seals have evolved into the Seals we know today.