The big powers, possessors of the largest and most sophisticated nuclear and conventional arsenals, bear a special responsibility in arms control and disarmament.

拥有最多和最精良核与常规武库的大国，在实行军控与裁军方面负有特殊责任。

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Such differences over data and counting rules proved to be insurmountable obstacles to earlier efforts at conventional disarmament.

CENTERFORSECURITYPOLICY: Center For Security Policy

It includes recommendations on security, verification, transparency, conventional weapons and the legal framework for nuclear disarmament.

UN: Secretary-General