The World Trade Organization (WTO) is an intergovernmental organization that regulates and facilitates international trade between nations. Governments use the organization to establish, revise, and enforce the rules that govern international trade.
It officially commenced operations on 1 January 1995, pursuant to the 1994 Marrakesh Agreement, thus replacing the General Agreement on Tariffs and Trade (GATT) that had been established in 1948.
The WTO is the world's largest international economic organization, with 164 member states representing over 96% of global trade and global GDP.