Former Secretary of the state Henry Kissinger gave his testimony before a Senate Armed Service Commitee and gave serious warning that if China and US let North Korea to have its nuclear weapons then the other states will anxiously show their concern for having access of them because the proliferation of North Korea for nuclear weapons  will urge other nations to achieve their aims of having nuclear weapons so easily and  the states like South Korea and Japan also want the access of nuclear weapons in this modern era.

he stated that this proliferation of nuclear weapons will effect the US credibility of deterrence against other nuclear weapon states.Therefore the denuclearization of nuclear weapons is fundamental or on the other hand sanctions should be applied of North Korea to give up its nuclear weapons.