Maus Freikorps

"The Kaiser told his fellow government members to create a government-owned military organization since his armed forces haven't got unified yet, so he decided to make this new organization called the Maus Freikorps. That's how it is, even for these German volunteer units that existed from the 18th to the early 20th centuries, which effectively fought as mercenary or private armies, regardless of their own nationality, that's why. It's also before Hitler made Germany feel the pain, not the joy like that."

--Su Ji-Hoon, Pain and Sorrow