Defense Secretary Voltaire Gazmin said Sunday that as soon as relocation funds are available the government plans to transfer air force and naval forces and their fleets of aircraft and warships to Subic Bay, which has become a busy free port since the 1992 departure of the US Navy.
"It's for the protection of our West Philippine Sea," Gazmin told The Associated Press by telephone, using the name adopted by the Philippine government for the disputed South China Sea.
Subic Bay is a natural deep harbor that can accommodate two large warships acquired recently by the Philippines from the United States, a defense treaty ally, he said, especially compared to shallower waters at the naval fleet base at Sangley Point in Cavite province, south of Manila.
A confidential defense department document obtained by the AP says Subic's location will cut reaction time by fighter aircraft to contested South China Sea areas by more than 3 minutes compared with flying from Clark airfield, also north of Manila, where some air force planes are based.
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The report said the cost of repairs and improvements for an air force base in Subic would be at least about USD 119 million. It said that compares with an estimated USD 256 million that it would cost to build a new air force base, because the vast Subic complex about 80 kilometers west of Manila already has a world-class runway and aviation facilities.
Relocating about 250 air force officers and men to Subic, along with "increased rotational presence of foreign visiting forces" would bolster business and trade at the port, the military document said.
A larger US presence could be used for disaster response and serve as a deterrent to what Philippine officials say have been recent aggressive intrusions by China into its territorials waters.