In addition to the two arrests, U.S. authorities charged about three dozen officers with China's national police force with using social media to harass dissidents inside the United States.
When French President Emmanuel Macron remarked that Europe should not blindly follow the U.S.'s lead on China, it set off criticism on both sides of the Atlantic.
China sent warships and dozens of fighter jets toward Taiwan on Saturday, Taiwanese officials said. The move follows a meeting between the U.S. House speaker and the president of Taiwan.
For President Tsai Ing-wen, the meeting capped off a high-stakes trip intended to prove to voters that strengthening U.S. ties is worth the fallout, as Taipei's relations with China deteriorate.