military testing ground

Translations
военный полигон
испытательный военный полигон
полигон для военных испытаний
военно-испытательный полигон
Definitions
An area or facility where the armed forces test weapons, military equipment, vehicles, or other defense systems.
A place or situation where military tactics, strategies, or personnel are tested in simulated or real combat conditions.
Words
military

adjective
военный
testing

adjective
испытательный
ground

noun
полигон