It is hard to imagine a threat to international security or a tension within U.S. foreign policy that does not involve the imposition of economic sanctions. The United Nations Security Council has fourteen sanctions regimes currently in place, and all member states of the United Nations are obligated to participate in their enforcement. The United States has some thirty sanctions programs, which target a range of countries, companies, organizations, and individuals, and many of these are autonomous sanctions that are independent of the measures required by the United Nations. Australia, Canada, the European Union, Japan, South Korea, and others also have autonomous sanctions regimes, spanning a broad range of contexts and purpose. Most well-known are those concerning weapons proliferation, terrorism, and human rights violations; but sanctions are also imposed in such contexts as money laundering, corruption, and drug trafficking. States may also impose sanctions as a means to achieve foreign policy goals: to pressure a foreign state to bend to the sanctioner's will, to punish those who represent a threat to the sanctioner's economic or political interests, or to seek the end of a political regime toward which the sanctioner is hostile, to give but a few examples.