none
they need them to manufacture products. :P :cyoot:
Give up and stop looking. :D
Some of those Natural Resources they need for the economy, like Canada has a lot of forests, so they sell lumber for money and the same as Saudi Arabia with oil
You will need a pilots license, ID/passport to fly into Canada or Mexico.
To Canada you can; to Mexico you can't.
We don't but it does prevent the USA from considering other methods to gain control and access to Canadian resources.
Yes
Of course they do
Your passport; if you are not from the US, Canada or the European Union, you also need a visa.Arizona, New Mexico, and Texas border Mexico.
If you are goning to Mexico or Canada you need a passport.
No. All you need is your passport.