The U.S.A. names its tanks after famous Americans. The names Grant, Sherman, and now Abrams comes to mind. Good ones, too.
I admire the Germans for naming theirs after Kitty Kats.
The names TIGER, PANTHER and now LEOPARD. Coming up the “Lion”? I think Jaguar may be claimed already.
and of course, the Patton, in use in various iterations for forty years.