You can't just go pointing your weapon at someone, there is strategy to this.. like that of khalid ibn ilwaleed... it isn't about number of men or weaponry, or casualty even... very few men had the ability to win a war..
To win a war means things are being met not just loss of lives.... which is what all the wars now a days seem to be about, they are mindless, with no diplomacy, ethics or mitigation or thought, almost like Viking' sporting event.
I really don't believe many men possess that ability anymore...
What did khalid ibn ilwaleed do when Arabia was threatened? people couldn't handle the situation, they were outnumbered 1000 to 1... he rearranged the five parties of troops that were with him at each end during the night time, asked people to tie torches into the camel hooves and set them running to create the illusion, that more forces were coming, obviously when the enemy group on the east finds themselves fighting with a different set of men, than those from the night previous, they feel like perhaps they are being outnumbered, not because there were new troops but because he asked sides to switch, and all the torrent sand in the air from the camels' running the night previous, the enemy felt they were outnumbered, they retreated.
There was an intelligent thought here, it wasn't about casualty, or winning, it was about fulfilling a purpose...
How many decent ethical thoughts or mitigation go into wars now a days? None, you just see people dropping like flies, like animals, like their lives meant nothing at all!