Slice and Dice

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Across
  1. 3. See: 5 Across
  2. 5. With 3 Across: 1916 Anglo-French Agreement draws spheres using straight lines
  3. 8. With 15 Across: Follow up cession with French and British PMs two years after 3 & 5 Across
  4. 9. See: 4 Down
  5. 10. With 16 Across: 1905 Japan-USA agreement to protect East Asia conveniently fails to ask “from who?”
  6. 12. With 6 Down: 1916 Russo-French agreement involves state-of-the-ark cartography
  7. 13. See: 2 Down
  8. 15. See: 8 Across
  9. 16. See: 10 Across
  10. 17. With 11 Down: Secret 1919 Italo-Greek Agreement secretly renounced the following year
  11. 18. With 1 Down: 1915-1916 correspondence sees yet another Sharif Hussein struggle to find truth among falsehoods
Down
  1. 1. See: 18 Across
  2. 2. With 13 Across: 1821 Agreement furnishes US with wang, fucks Mexico
  3. 4. With 9 Across: Anglo-US Treaty cuts the umbilical cord on the American continent
  4. 6. See: 12 Across
  5. 7. See: 20 Down
  6. 11. See: 17 Across
  7. 14. With 15 Down: 1935 Anglo-French Pact seeks to turn famously upside down leader’s frown the other way around
  8. 15. See: 14 Down
  9. 16. With 19 Down: 1919 Commission concludes cradle of civilisation needs a civilising project
  10. 19. See: 16 Down
  11. 20. With 7 Down: 1903 Treaty between USA and French Investors cue waterworks in central America