1. The flooding led to further defence installations during the 1980s. 2. They were also used for fire control at fixed coastal defence installations . 3. Fixed coastal defence installations were constructed on Mount Marlow at Pallarenda and on Magnetic Island. 4. The fort was notable for both its effectiveness as a defence installation and for its architecture. 5. CIA maps and data available on the net don't usually identify sensitive locations, including defence installations . 6. CFB Comox is the primary air defence installation on Canada's rotary-wing search and rescue ( SAR ) aircraft. 7. Another such defence installation was at "'Dundas Point "'on the northeast side of the island at. 8. The game is set on one such island, called " ARTROCK 6 " which is a completely automated defence installation . 9. "' Fort Perch Rock "'is a former defence installation situated at the mouth of Liverpool Bay in New Brighton. 10. "' Stony Batter "'is a historic defence installation at the northeastern end of Waiheke Island, Auckland, New Zealand.