This is the only enlisted submariner to receive the Medal of Honor

The U.S. Navy submarine service was barely two decades old when the submarine USS O-5 began taking on water in the Panama Canal Zone in October 1923. A cargo ship slammed into the submarine without warning and the boat began taking on water. The crew began to abandon ship. One lifelong submariner, Henry Breault, could have escaped, too, but he went down with a shipmate that couldn't escape. The two were trapped in the sunken hull until the next day. For that heroism, President Calvin Coolidge presented Breault with the Medal of Honor.

He was the first member of the submarine service to receive the award and the only enlisted submariner to receive it for duties aboard a sub.

The USS O-5 was never a very lucky ship. Fifth in the line of 16 O-class submarines, she entered service six months too late for World War I. Before even leaving for Europe, an explosion killed her skipper and one of her officers. By Oct. 28, 1924, Breault and the USS O-5 were among a contingent of submarines moving to enter the Panama Canal. That's when disaster struck.

Or more accurately, that's when the United Fruit Company struck.

Either through human error or miscommunication (or likely a mix of both), the UFC's SS Abangarez was moving to dock when it hit the USS O-5 on its starboard side, creating a 10-foot hole in its control room. The ship rolled to the left and then right before sinking bow first.

Most of the crew were rescued but five were missing, including Breault and Chief Electrician's Mate Lawrence Brown. Breault had actually escaped the sinking boat when he realized Brown was still asleep down below. He went back into the submarine and closed the deck hatch behind him. The two ended up trapped in the torpedo room below the surface.

When divers discovered crewmen were alive inside, work began to get them out. The only way to do that was to lift the boat the full 42 feet above the waterline. Luckily for them, they happened to be in the Canal Zone, the home of some of the world's heaviest lifting cranes. The crane barge Ajax, one of the largest in the world, made its way to the wreck as soon as possible.

After three failed attempts and a full 31 hours, the canal crews and sailors were able to lift the sub up high enough to open the torpedo room hatch and free their comrades.

Breault had been sailing since age 16 and was a sailor for the rest of his life, dying just two days before the Japanese hit Pearl Harbor on Dec. 5, 1941.