Abstract

Post Cold-War， Nonproliferation became one of the focus of the international politics. As the only superpower of the world， The American's nonproliferation policy would not only affect the results of itself nonproliferation， but also impact the result of the world on some degree. The thesis analysis the American's nonproliferation from unilateral， bilateral and multilateral three levels.

This thesis holds that the American carried out a new nonproliferation method—Counter-proliferation. Counter-proliferation， nonproliferation and Consequences management consist of the American's deal with the WMD proliferation after cold war.

After cold war， American shows itself some new characteristics on nonproliferation policy. While American carry out counter-proliferation， it pays much more attention to the anti-threat. Some time， American try to anti-threat at the expense of nonproliferation， furthermore， American often carry into execution counter-proliferation in name， anti-threat reality. Compare to the cold war， after cold war， when American pursues nonproliferation， it have far more space， the proof is when American pursues action， no matter unilateral， bilateral and multilateral， the other countries usually choice to follow. The cooperation between the American and international society on nonproliferation presents clearly asymmetry. The global nonproliferation system has American's style.

This article holds that nonproliferation of post cold-war gained many achievements， in fact， WMD proliferation became much more serious. The fundamental reason is the discord between the international security and the national security under the international anarchy. But as the only superpower， the American has inescapable responsibility for this result.

This thesis believes that the best way of nonproliferation is not to threat or political or economic sanctions， but to make the potential states realize that gain the WMD is inconformity its fundamental interest.

Keywords：American； Post Cold-War； Nonproliferation； WMD