The nuclear non-proliferation treaty of 1968 was an example of a) the distrust that the united states had for the soviet union under the kennedy administration. b) an international treaty with the goal of limiting the spread of nuclear weapons and promoting the peaceful use of nuclear energy. c) a treaty that the soviet union was unwilling to sign because of the rising tensions between the communist east and the democratic west. d) the friction between the eastern and western hemispheres because only countries from north and south america were willing to sign the treaty.