Shinsengumi

The Shinsengumi (新選組), sometimes referred to as the The New Squad, are a group primarily composed of swordsmen with the exception of a few other members. They are split into thirteen different divisions, each division having a Captain, Lieutenant and division members. The World Government refers to them as Dogs of the Underworld (地獄の犬, Jigoku no Inu) because of their rebellion during the short war against each other.

Overview
The Shinsengumi is a squadron of Captains split into different division, thirteen in counting. Shinsengumi exist only to protect the and everything within it including it's people and it's places. The Shinsengumi also has some sort of beef with the World Government from the incident three years that sparked between the two that started the Shinsengumi, Zanetti Elijah and Seavey Dan. Within just a short three year time span, the Shinsengumi gained quite the repuatation for themselves gaining respect from many different pirates and swordsmen, even drawing the attention of the Shichibukai. The World Government hates them back, and is also in fear of their power, hoping that the group would never ally with any of the other Three Great Powers.