The North American Free Trade Agreement or NAFTA.
Yes. They're all on the continent of North America.
The North American Free Trade Agreement (NAFTA) was signed by all three of the countries in North America, which are (from north to south) Canada, the United States of America, and Mexico.
All countries except the United States, Canada and Mexico.
Mexico is hot all year... Canada is warm and cold.
USA and Mexico only; Canada is a parliamentary republic.
No, China is not a member of NATO.
Canada, USA and Mexico are all independent countries; Alaska is a state of the United States.
Yes, all of them belong to the United Nations.
Not at all.
Overall, yes. All three are federal republics, but Canada has a parliament while Mexico and the US have a bicameral congress.
they all voted on the NAFTA agreement
They are all located in North America.