Its last assignment was with the 481st Night Fighter Operational Training Group at Salinas Army Air Base, California.

Its personnel being veteran American pilots trained by the Royal Air Force in night interception operations.

In September, the first American-built dedicated night fighter began to arrive, the Northrop YP-61 Black Widow and a few production P-61As.

[2] In March 1944 the 348th was disbanded when the Army Air Forces found that standard military units, based on relatively inflexible tables of organization were proving less well adapted to the training mission.

[2] This article incorporates public domain material from the Air Force Historical Research Agency