Friendship between countries has “no limits”, they said. Given that the leaders met just weeks before the invasion, it would be understandable to conclude that China should have had better knowledge of the Kremlin’s plans. But mounting evidence suggests that the echo chamber of China’s foreign policy establishment may have misled not only netizens in the country, but also its own officials. My colleague Edward Wong reported that over a three-month period, senior US officials held meetings with their Chinese counterparts and shared intelligence that detailed Russia formation of troops around Ukraine. The Americans asked Chinese officials to intervene with...