The group was activated again as part of Project Arrow, a program by Air Defense Command (ADC) to revive World War II fighter units to replace its Air Defense Groups.

The OTU program involved establishing an oversized parent unit which would provide cadres to organize "satellite groups.

[5] November 1942 saw another shuffle of squadrons as the 331st moved to Van Nuys Army Air Field.

Accordingly, a more functional system was adopted in which each AAF base was organized into a separate numbered unit.

[10] The group was reconstituted in 1955 as the 329th Fighter Group (Air Defense) and activated[5] by Air Defense Command (ADC) as part of Project Arrow, which was designed to bring back on the active list fighter units which had compiled memorable records in the two world wars.

[11] The group was tasked with air defense in the northeastern United States, flying radar equipped and Mighty Mouse rocket armed North American F-86D Sabres.

[15][16][17] In December 1956, both of the group's squadrons began to receive upgraded Sabres equipped with data link communications equipment to interface with the Semi Automatic Ground Environment (SAGE) air defense system.

Systems Squadrons This article incorporates public domain material from the Air Force Historical Research Agency