3. What great change took place in Germany after 1866?

4. Why must the war go on till Germany is crushed?

5. What lesson must Germany learn?

6. Why have the South American republics fought so many wars?

7. Suggest some solution for the problem of war.

8. What is meant by arbitration?

9. What was the greatest mistake of those who planned the war?

10. How did the Russian Revolution help the cause of the Entente?

11. What is the greatest lesson taught by the war?