The inventory of Pakistan Navy is being strengthened while measures are being taken to make the navy a potent force, defense experts have said. Last year, the Pakistan Navy inked a deal with China for four state-of-the-art frigates besides inducting modern Agosta 90b submarines and enhancing the existing fleet of P-3C Orion surveillance aircrafts. The acquisition of four F-22P frigates would be an important step for the county’s maritime defence and experts hope that the first of the ships would be delivered in 2008. According to schedule, China State Shipbuilding Corporation would supply the ships from 2008 to 2013. The fourth warship would be built completely in Pakistan to transfer the technology.