It should be 0%. Catch up to what - for what? So we can go do some drone bombing in Africa like a proper western nation? Is that the plan? I guess it's easier to give the guys with the big guns what the want, instead of actually staying true to the values of demilitarizatizing the planet.
It should be 0%? If men were angels, I guess. How do you propose that we demilitarize the planet, without a big stick to whack down the bad players that will inevitably arise?
if you tell russians to take down their weapons, their will be no war. if you tell ukrains to take down their weapons, they will loose their country.
it's not as easy as you wish, besides that I would prefer like you would describe, unfortunatly as long as there are borders/humans/whatever there will always be conflicts.