Missions primarily consisted of low-level incendiary raids on smaller Japanese cities, both at night as well as daylight on a daily basis.

Beginning in March 1945, the group carried out incendiary raids on area targets, flying at night and at low altitude to complete the assignments.

In addition to incendiary raids, the 40th also participated in mining operations.

In April 1945, General LeMay gave new orders for more incendiary raids.

The group received two Distinguished Unit Citations for incendiary raids on the homeland islands of Japan.

Conducted incendiary raids on area targets in Japan, carrying out these missions at night and at low altitude.

The incendiary raids were coordinated with precision bombing attacks during the last weeks of the war in an attempt to force the Japanese government to surrender.

The attack on Toyama is an incendiary raid that destroys almost the entire city.

The sky was very bright one night, following a big incendiary raid, reflecting the fires from the...

It participated in mining operations, bombardment of strategic targets, and incendiary raids on urban areas.