Xi Jinping will leave China for the first time in more than two years for a trip this week to Central Asia, where he will meet Russia's Vladimir Putin, just a month before he is set to cement his place as the most powerful Chinese leader since Mao Zedong.

The trip, Xi's first abroad since the start of the COVID-19 pandemic, shows he is confident about both his grip on power as he heads for a third term in office and about his role as a world leader at a time of renewed great power friction.

Against a backdrop of Russia's confrontation with the West over Ukraine, the crisis over Taiwan and a stuttering global economy, Xi is due to depart for a state visit to Kazakhstan on Wednesday.