WASHINGTON (AP) — Secretary of State Antony Blinken is starting three days of talks with senior Chinese officials in Shanghai and Beijing this week with U.S.-China ties at a critical point over numerous global disputes.

The mere fact that Blinken is making the trip — shortly after a conversation between President Joe Biden and Chinese leader Xi Jinping, a similar visit to China by Treasury Secretary Janet Yellen and a call between the U.S. and Chinese defense chiefs — might be seen by some as encouraging, but ties between Washington and Beijing are tense and the rifts are growing wider.

From Russia and Ukraine to Israel, Iran and the broader Middle East as well as Indo-Pacific and trade issues, the U.S. and China are on a series of collision courses that have sparked fears about military and strategic security as well as international economic stability.