海洋在中国一直是一个高烧不退的热门话题。对国人来说，这当中既有欣喜和期待，同时也混杂了忧虑和危机。这种喜忧参半的形势迫使我们开始思考一系列与海洋相关的问题；海洋对我们到底意味着什么？国家的崛起和强盛是否一定需要强大的海权？我们怎么才能抓住海洋带来的机遇并从容应对挑战？在21世纪，中国能成为海军强国吗？本书就是在这一背景下动笔并完成的。书中既有历史又有现实，涉及海洋的属性、海权的历史、强国的兴衰、海军发展战略、海战武器装备、岛屿海域争端等等内容，以期为读者提供一个了解海洋问题的全方位视角。(Ocean is always a hot topic in China. For the Chinese people, there is not only joy and expectations, but also worries and crisis. The bittersweet situation forces us to think about a series of problems associated with the ocean; what does the ocean mean for us? Is strong sea power necessary for the rise and prosperity of the country? How can we seize the opportunities brought about by the ocean and calmly cope with the challenge? Can China become a great power in navy in the 21st Century? This book was started and completed under this background. There are both histories and realities in this book. This book involves the attributes of the ocean, the history of sea power, the rise and decline of great powers, the development strategy of navy, weapons and equipment for naval battle, disputes on island and ocean area and other contents, in order to provide the readers with an all-round perspective for understanding of marine issues.)