rec.aviation.military - join
Military aircraft of the past, present and future.
Low activity, 1151 subscribers, Usenet

rec.aviation.military.naval - join
Discussion of Naval Aviation subjects.
Low activity, 256 subscribers, Usenet

soc.history.war.world-war-ii - join
History & events of World War Two. (Moderated)
Low activity, 925 subscribers, Usenet