League of Nations - Keeping the peace in the 1920s

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Across
  1. 2. Small body of the League of Nations responsible for maintaining peace (7)
  2. 3. Area of land that France wanted Germany to return in 1919 (6,8)
  3. 6. Isles disputed by Sweden and Finland (6,7)
  4. 7. The League of Nations did not have one of these (8,4)
  5. 13. Concept that if one League country was attacked, all countries were attacked (10,8)
  6. 16. Country invaded by Yugoslavia in 1921 (7)
  7. 17. Fascist leader of Italy from 1922 (9,)
  8. 18. Commission that overlooked British and French running of former German colonies (8)
  9. 20. Every country that was a member of the League had a seat on this body (8)
  10. 21. Greek island invaded by Italy in 1923 (5)
  11. 22. Area of land lost by Germany to Denmark after the Versailles Treaty (5,9)
  12. 23. French politician nicknamed “Le Tigre” (Grr) (10)
Down
  1. 1. Body that provided administrative support to the League (11)
  2. 4. Area of land with lots of coalfields. Became part of France for 15 years (4)
  3. 5. Country that invaded a Mediterranean island in 1923 (5)
  4. 8. Area of land demilitarised due to the terms of the Versailles Treaty (9)
  5. 9. Area of land that Germany lost to Poland due to the Versailles Treaty (5,7)
  6. 10. First name of Italian dictator who orchestrated invasion of a Mediterranean island in 1923. (6)
  7. 11. Area of land disputed between Poland and Lithuania (5)
  8. 12. President Wilson wanted to make the world safe for this (9)
  9. 14. Idea that nations should rule themselves (4,13)
  10. 15. Prime Minister of Great Britain who wanted Britain to restart trade with Germany after the war (5,6)
  11. 19. Decisions of the League Council and Assembly had to be this (9)