Launching its first nuclear-powered submarine, India became the 6th country in the world to do so. Named Arihant, the 6,000 tonne submarine was launched by Dr. Manmohan Singh. It was entirely built in India with Russian assistance.Dr. Singh said this is not mean to be any indication of aggression on any country. However, the sea is becoming an integral part of India's strategy. India till now had only capabilities to launch missiles from land or air; this will change once the INS Arihant becomes fully operational in about two years time. China has recently expanded its position in the sea by helping the Sri Lankan government fight the LTTE. In return, they have got a strategic location in the island country, which is bound to play an important role in the Indian Ocean. This new Indian foray will not only add a new aspect to Indian defence, but also act as a warning to the increasing Chinese naval presence.