The Philippines aims to buy two frigates, two helicopters and three gunboats for deployment in the South China Sea where a territorial dispute with China has lent urgency to the need to bolster forces, a Philippine navy officer said on Wednesday. China claims nearly the entire South China Sea, rejecting claims to parts of it by the Philippines, Brunei, Malaysia, Vietnam and Taiwan. The confrontation between the Philippines and China has been particularly tense since June 2012 when China seized a rocky outcrop known as the Scarborough Shoal which is believed to be rich in oil and natural gas as well as fisheries resources. "The events in the West Philippine Sea actually gave some urgency on the acquisition…