Which of the following was a challenge that western nations faced regarding disarmament? some nations agreed to disarmament but some did not. some nations were willing to reduce armed forces but not weapons. they could not sign treaties to reduce the size of their navies. they failed to agree with each other on limiting the size of their armies.

It would be Some nations agreed to disarmament but some did not. Nations which has large armies and weapons usually doesn't agree in disarmament because it will give a strain and more effort are required to disband to follow the disarmament treaty. Also those nations who have an advantage in military power would not agree to lessen its power for the lesser power.

They weaken the south vietnamese army.