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

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

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

alt.military.retired - join
Discussion group for retired military personnel
High activity, 256 subscribers, Usenet

soc.history.what-if - join
Alternate history.
High activity, 1578 subscribers, Usenet

sci.military.moderated - join
Military technology. (Moderated)
Low activity, 317 subscribers, Usenet

soc.history.war.misc - join
History & events of wars in general.
Low activity, 250 subscribers, Usenet

us.military.navy - join
Life and work in the US Navy.
Low activity, 131 subscribers, Usenet

us.military.army - join
Life and work in the US Army.
High activity, 402 subscribers, Usenet

alt.war.nuclear - join
weapons of mass-destruction (NBC)
Low activity, 133 subscribers, Usenet