Illustration: Liu Rui/Global Times On Tuesday, US President Joe Biden's administration placed five Chinese companies on a trade blacklist for "allegedly supporting Russia's military and defense industrial base." On the same day, 20 other entities which have connections with China were also added to the blacklist by the US for allegedly helping Iran or supporting military application. This is the first time the US has taken action against Chinese entities over Russia-related businesses since the Russia-Ukraine conflict broke out in February. US media claimed that the move was to demonstrate US' resolve and strength to implement sanctions against Russia. Who…