What is the name of an agreement signed by Canada, Mexico, and the United States, creating a trilateral trade bloc in North America similar to the European Union(EU)? 
Cross-national cooperation and agreements:  In bilateral integration, only two countries economically cooperate with one and other; whereas in regional integration, several countries within the same geographic distance become joint to form organizations such as the European Union (EU) and the North American Free Trade Agreement (NAFTA).
i don't know