scorched earth policy
noun/ˌskɔːtʃt ˈɜːθ pɒləsi/
/ˌskɔːrtʃt ˈɜːrθ pɑːləsi/
- (in a war) a policy of destroying anything in a particular area that may be useful to the enemy
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scorched earth policy
Definition of scorched earth policy noun from the Oxford Advanced Learner's Dictionary