The District of Columbia and twelve other states have _____, under which some schoolchildren may attend private elementary or high schools using educational certificates paid for by taxpayers' dollars.

War between __________ within a state trying to create, or prevent, a new government for the entire state or some part of it is civil war

A) families B) factions C) militias D) guerillas

Which international institution embodied the concept of collective security?

a. The League of Nations b. The Tripartite Pact c. The Greater East Asia Co-Prosperity Sphere d. The Court of International Justice