The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

India's successively launching of its first nuclear submarine and aircrafi carrier shows New Delhi's upgraded naval capability and its strong drive to dominate the Indian Ocean, observers say. The 37, 500-ton aircraft carrier INS Vikrant will enter the water on Monday at Kochi shipyard in southern India, four years after its keel was laid.
Launches highlight India's sea （）