govern with an iron fist

Translations
управлять железной рукой
He governs with an iron fist, leaving no room for dissent.
Он управляет железной рукой, не оставляя места для инакомыслия.
Definitions
To rule or control a group or country with strict, oppressive, and authoritarian measures, often disregarding individual freedoms and rights.
Words
govern

verb
править
with

preposition
с
an

article or possessive pronoun
один
iron

adjective
железный
fist

noun
кулак