Scorched earth
A scorched-earth policy is a military strategy that aims to destroy anything that might be useful to the enemy while it is advancing through or withdrawing from a location. Any assets that could be used by the enemy may be targeted, for example food sources, water supplies, transportation, communications, industrial resources, and even the locale's people themselves.
Japanese war crimes
Historian Mitsuyoshi Himeta reports that a "Three Alls Policy" ("Sankō Sakusen") was implemented in China from 1942 to 1945 and was in itself responsible for the deaths of "more than 2.7 million" Chinese civilians. This scorched earth strategy, sanctioned by Hirohito himself, directed Japanese forces to "Kill All, Burn All, and Loot All". Additionally, captured Allied servicemen and civilians were massacred in various incidents, including: