11. Soon the entire island was under guard, and coast guard and air observation posts were operational. 12. He served in the Malayan Emergency in the early 1950s and won his 656 Air Observation Squadron. 13. The following year, No . 1 FTS commenced regular courses in signals, photography, air observation , and aircraft maintenance. 14. The Air Observation Post Headquarter's building was located at the edge of the Tide Cove facing Tolo Harbour. 15. Submarines operating at or near the surface were seen to be critically vulnerable to air observation and attack. 16. The cavalry advanced at with the knowledge from earlier air observation , that little opposition was to be expected. 17. No . 16 Air Observation Post Flight was formed at Lae in New Guinea on 20 October 1944. 18. Suitable targets found by air observation were engaged by artillery using the " zone call " system . square. 19. The weather improved on 4 October, with high winds and little rain but low cloud made air observation difficult. 20. There are outdoor gardens set within the structure, and at the top, just above, a large open-air observation deck.
