Xi Jinping, China’s leader, is reinforcing his bond with President Vladimir V. Putin of Russia. But that could hurt Beijing’s efforts to repair ties with Europe.

Chinese President Xi Jinping is due to start a four-day visit to Russia on Wednesday, giving President Vladimir Putin an important diplomatic boost at a time when the Russian leader is keen to show his country is not isolated on the world stage.

Chinese leader Xi Jinping and Russian President Vladimir Putin signed a joint statement “further deepening” their partnership following talks in Moscow Thursday – a show of solidarity in the face of global uncertainties unleashed by US President Donald Trump’s “America First” diplomacy.