In my country, WW2 dog names are best avoided.If you really want to go with the WWII theme, why not simply Nuts?
Could have several meanings...
Or, still in WWII, someone who was really good at hounding people: von dem Bach-Zelewski?
Being a Walking Dead aficionado, I could really go for Dog.
Maybe Cat would be better. Not much chance of several dogs coming to heel on that.
Pick your choice of my choice selection.