India has also fitted its Boeing P-8I reconnaissance aircraft with all-weather, active-radar-homing, over-the-horizon AGM-84L Harpoon Block II missiles and Mk 54 All-Up-Round Lightweight Torpedoes.[200] Indian warships' primary air-defence shield is provided by Barak 1 surface-to-air missile while an advanced version Barak 8 is in development in collaboration with Israel.[201] India's next-generation Scorpène-class submarines will be armed with Exocet anti-ship missile system.