30a

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Across
  1. 5. Guarding movement
  2. 8. Rapid increase
  3. 9. No progress
  4. 13. Overwhelm enemy
  5. 14. Position forces
  6. 16. Encircle area
  7. 18. Surprise attack
  8. 19. Regular scout
  9. 20. Irregular warfare
Down
  1. 1. Take control
  2. 2. Protective cover
  3. 3. Self-destruct ship
  4. 4. Arrange troops
  5. 6. Dugout defense
  6. 7. Distract move
  7. 10. Wear down enemy
  8. 11. Chase enemy
  9. 12. Scavenge supplies
  10. 15. Surround enemy
  11. 17. Conceal position