World War II had the Dirty Dozen.
The war in space has The Lucky 13th.
The 13th Spaceborne is the elite fighting force of the Accord of Free Worlds. Their do-or-die mission is to stop two enemy empires from poaching free worlds.
For decades, the Accord tried to keep out of the war that divided the galaxy. But now, they have no choice--and the soldiers of the "Lucky 13th" are on their own against seemingly unbeatable odds.