The united states, canada and mexico make up the which in essence has removed all barriers to trade between these countries and created a huge north american market. north american trade union north american common market north american free trade agreement general agreement on tariffs and trade

NAFTA (North American Free Trade Agreement)

Explanation:

Canda, US and Mexico signed this commercial treaty in 1993 and went into effect on January 1, 1994. It's main goal is to eliminate tariff barriers in agricultural, manufacturing and services as well as protection to intellectual property rights.

Nowadays is one of the largest free markets in the world causing lots of economical, social and cultural benefits to all three countries that comprises this treaty.