In December 2010, the Asahi Shimbun published a remarkable roadmap laying out the future trajectory of Chinese maritime expansion. In its analysis, the Shimbun outlined a geographically contingent thesis of Chinese geopolitical strategy—one on which the scholar Tetsuo Kotani elaborated further in a 2019 academic paper. Both publications argue that Chinese maritime access to the Pacific and Indian Oceans is effectively constrained through a series of islands and straits in the First Island Chain. These potential chokepoints constitute the “Nine Gates” through which Chinese maritime commerce and sea power must flow.
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