Who can help me with the questions

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?

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.

How are isolationism and nativism related ? in the 1920s what actions did americans take that reveal their distrust of others