The arrest of two Chinese nationals in Ukraine on espionage charges this month has punctuated a shift in Kyiv’s tone toward Beijing, whose support for Russia’s war is becoming harder to ignore. Ukraine’s intelligence service on July 9 said a 24-year-old Chinese man – expelled from a Ukrainian technical school two years ago – tried to obtain classified information about the Neptune missile program by befriending a defense worker. Authorities say he intended to pass the information to his father, who was also arrested,…