Off the coast of Zhejiang province, an unusual vessel plies the East China Sea. Two Chinese coast guard cutters and a rigid inflatable boat—ostensibly civilian, though the men aboard brandish knives—block their path. The remaining 40 percent of Chinese aquaculture occurs in marine environments: nearshore enclosure farms, net pens, and specialized aquaculture vessels. Submersible cage facilities like the Deep Blue 1 & Deep Blue 2 in the Yellow Sea, or the Xinhuan No. The Deep Blue 2 incident illustrates the broader geopolitical advantages and implications of the Chinese aquaculture program.