On 2 April 2013, the UN General Assembly voted overwhelmingly to adopt the Arms Trade Treaty (ATT) to govern the legal international trade in many types of conventional weapons, from warships and aircraft to small arms and light weapons. A basic obligation of the treaty is that all States Parties should establish or maintain controls in the area. In this way, the treaty also helps the international community to address unregulated or illegal trade in conventional weapons. The treaty opened for signature on 3 June 2013. To date, two-thirds of UN member states have signed the treaty (130 states), and 72 have ratified it. The treaty entered into force on December 24, 2014.