scorched–earth

scorched–earth /ˈskoɚtʃtˈɚθ/ adjective
scorched–earth
/ˈskoɚtʃtˈɚθ/
adjective
Britannica Dictionary definition of SCORCHED–EARTH
— used to describe a military policy in which all the houses, crops, factories, etc., in an area are destroyed so that an enemy cannot use them