Besides,fish is the staple food in a large part of the world.Marine fisheries are the main source of income for millions.Moreover,apart from known reserves,improved technology is facilitating exploration of new under the seabed deposits of oil,gas and minerals worth billions of dollars.But the importance of the sea is not only economic.It also acts a medium for national defence.Here the principles of ‘Freedom of Navigation’ ard ‘Sea is the common heritage of mankind' add distinct dimensions to the use of sea for national defence.With advances in naval technology,the sea has become a preferred medium for projecting power and influencing events ashore making it an arena for political and military power plays.
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