jackboot

Short definition from Wiktionary

Noun

1. 1
   A glossy leather calf-covering military boot, commonly associated with German soldiers of the WWII era.
2. 2
   The spirit that motivates a totalitarian or overly militaristic regime or policy.

Verb

1. 1
   To stamp on with a jackboot.
2. 2
   To march in jackboots.