Last month, two Chinese fishing boats were caught operating illegally in South Korean waters. The incident made local headlines and minor diplomatic waves, but it’s just a drop in the bucket in what has become a troubling trend for China’s foreign water fishing fleets. Over the last decade, there have been more than 4,600 cases of Chinese fishing boats being caught illegally in South Korea’s waters alone, according to the government, and these marine transgressions have not been limited to neighbors.