I don't like the way it limits our power to act unilaterally. I know how that sounds, but if you look at history, every time the US has gone isolationist, a world war has occurred.
Acting unilaterally causes Iraq's and Vietnams. World wars never involve acting unilaterally.
Maybe unilateral action could have brought a quicker end to World Wars 1 and 2, decreasing the casualty toll?
No. Just no.
I challenge anyone to try to form an argument showing a case where unilateral involvement would benefit us and be hindered by this ammendment.
Also, world wars never involve acting unilaterally. Unilateral action in WW2 means we would have taken on the Axis and the Allies by ourselves. No way would less casualties have been possible. Ending conscription would bring less casualties though.