31a

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Across
  1. 1. Armed uprising
  2. 4. Two-side attack
  3. 7. Information gather
  4. 9. Block passage
  5. 11. Enter combat
  6. 14. Engineer tactic
  7. 16. Mock attack
  8. 18. Lure strategy
  9. 20. Move forward
Down
  1. 2. Bypass enemy
  2. 3. Break through
  3. 5. Brief invasion
  4. 6. Heavy fire
  5. 8. Response move
  6. 10. Settle troops
  7. 12. Side maneuver
  8. 13. Strengthen position
  9. 15. Pull back
  10. 17. Protecting rear
  11. 19. Aggressive attack