Disarmament is vital for promoting international peace and security, and hastening progress on some of the grand challenges of our time. It frees resources, reduces escalation risks, and increases predictability by limiting national military capabilities or even banning certain weapons outright. The Anti-Personnel Mine Ban Treaty, for example, prohibits these armaments and requires their destruction. The concepts of arms control and non-proliferation are closely related but distinct. Arms control aims to manage arms competition through constraints on the deployment of national military means; the New Strategic Arms Reduction Treaty (START), for example, is designed to limit deployed nuclear warheads. Non-proliferation meanwhile prevents the spread of certain weapons - as in the case of the Treaty on the Non-Proliferation of Nuclear Weapons.