Unilateral and multilateral approaches to trade?

A country can take one of two approaches to achieving free trade. It can take a unilateral approach and remove its trade restrictions on its own. This is the approach that Great Britain took in the nineteenth century and that Chile and South Korea have taken in more recent years. Alternatively, a country can take a multilateral approach and reduce its trade restrictions while other countries do the same. In other Words , it can bargain with its trading partners in an attempt to reduce trade restrictions around the world. One example of multilateral approach is the North American Free Trade Agreement (NAFTA), which in 1994 lowered trade barriers among the USA, Mexico and Canada.