Bombing Sydney harbour

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Across
  1. 3. The capital of Australia (8 letters)
  2. 4. Australian state where Sydney is located (4 letters)
  3. 6. Country that launched the attack (5 letters)
  4. 7. Type of Japanese vessel used in the attack (7 letters)
  5. 10. Defensive measures against submarines (10 letters)
  6. 12. The type of naval vessel primarily involved in the defense (4 letters)
  7. 13. The bodies of water surrounding Australia (6 letters)
  8. 16. Australian soldier's informal nickname (6 letters)
  9. 17. Australian military abbreviation (3 letters)
  10. 18. Action taken by ships to avoid torpedoes (5 letters)
  11. 21. Result of the attack on the Australian Navy (7 letters)
  12. 22. Strategic resource targeted by the submarines (3 letters)
Down
  1. 1. Device used to detect submarines (5 letters)
  2. 2. Primary target, a battleship in Sydney Harbour (8 letters)
  3. 5. Japanese term for "divine wind," linked to WWII (7 letters)
  4. 8. Military defensive structure or position (6 letters)
  5. 9. Body of water where the attack occurred (7 letters)
  6. 11. A high-ranking naval officer (6 letters)
  7. 12. Australian city targeted in the attack (6 letters)
  8. 14. Large docked ship that was sunk in the attack (7 letters)
  9. 15. Explosive device launched by submarines (7 letters)
  10. 19. sounded during the attack (5 letters)
  11. 20. Submarine's underwater propulsion device (5 letters)