Chinese spy ships

Russia and China dispatch spy ships to shadow Trump fleet

As the US aircraft carrier Carl Vinson and its accompanying escort ships come within striking distance of North Korea, a Japanese newspaper, Yomiuri Shimbun, is reporting that Russia and China have sent spy ships to monitor their movements.
Yomiuri Shimbun says it has been provided with this information by “numerous sources within the Japanese government”.  The Japanese government would be well-informed about this situation because some of its own warships have joined the task force led by Carl Vinson.