I've always thought that the lack of physical bravery is why liberals are so anti-military.
They just cannot believe that these young men (and women) serve not because they are brainless dupes of the "military-industrial complex", but simply, among other reasons, because they have more raw physical courage in the third metatarsal of their little finger, than in the whole pale, withered, pony-tailed body of say, your average college professor.
metatarsal of their little finger.....
ahem...