What challenges to national security did Washington face in the Northwest territory?

I’m annoyed but glad that my history teacher left and quit her job as a teacher to become a flight attendant

The strait of magellan connects the atlantic ocean with the a amazon river b. gulf of mexico c. pacific ocean d. caribbean sea select the best answer from the choices provided о а b oo оо

Brainliestttme : ) what are trading blocs and what is the impact of international cooperation?