WordNet sense 1 (a rationalized mental attitude):

position, stance

WordNet sense 2 (capability in terms of personnel and materiel that affect the capacity to fight a war):

strength, military capability, military posture, military strength

WordNet sense 3 (the arrangement of the body and its limbs):

attitude

WordNet sense 4 (characteristic way of bearing one's body):

bearing, carriage

WordNet sense 5 (behave affectedly or unnaturally in order to impress others):

pose

WordNet sense 6 (assume a posture as for artistic purposes):

model, sit