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.
Cagayan de Oro
The Japanese army implemented a scorch earth policy. Filipino and American guerrilla forces fought back during this occupation and American planes bombed both the university and San Agustin church on October 10, 1944. The Japanese were never able to successfully move outside the city for any length of time due to the constant pressure and attacks from the Philippine resistant movement. American and combined Free Philippine forces landed in Cagayan de Oro on May 10, 1945, three years and 7 days after the Japanese occupation.