Pls someone explain diplomacy and debate

What changed for the seminole indians of florida during the 1930s

How does the concept of competition relate to the arms race between the us and the soviet union during the cold war?

How does nafta affect relations between the united states and canada? a. it bans immigration between the two countries. b. it opens the borders between the two countries. c. it raises taxes on trade between the two countries. d. it allows free trade between the two countries.