By the end of the war, the 4./NJG 1 was one of the most successful "Nachtjagdstaffel"—a squadron of a night fighter wing—of the Luftwaffe.
Oktobra 1940 je tako Nachtjagdgeschwader 1 (NJG 1) že imel tri skupine, medtem ko sta bila Nachtjagdgeschwader 2 (NJG 2) in Nachtjagdgeschwader 3 (NJG 3) še v fazi nastajanja.