TAIPEI, Taiwan (AP) — Russia and China are helping each other expand their territorial reach, and democracies must push back against authoritarian states that threaten their rights and sovereignty, Taiwan’s outgoing foreign minister, Joseph Wu, said in an interview with The Associated Press.

His comments came as Russian President Vladimir Putin was on a visit to China amid Russia’s ongoing invasion of Ukraine. Putin and Chinese leader Xi Jinping reaffirmed their “no-limits” partnership as both countries face rising tensions with the West.

Wu called on democracies to align in countering Russia and China’s military assertiveness in Europe, the South China Sea and beyond. China threatens to invade Taiwan, a self-ruled democracy that it claims as its own territory.

“Putin’s visit to Beijing is an example of the two big authoritarian countries supporting each other, working together with each other, supporting each other’s expansionism,” he said.