Is there such a thing as a military personality? Psychology Today addresses this very topic:
I don’t believe there is a “military personality” per se. But service members do share a number of mannerisms, beliefs, traits and perceptions.
Confidence, for example – service members have an air of self-assuredness, poise and downright coolness. A purposeful and swift stride, eye contact with strangers and a head held high with a slight controlled swivel is a dead giveaway that a confident soldier, sailor, airmen or Marine is in the area.
Hmm, that would mean there are a lot of military types here, for example. (One weensy editorial qwibble, why is Marine capitalized and not Sailor?)