New Delhi, April 14 -- Spanish Prime Minister Pedro Sanchez is in China again this week, his fourth trip in just over three years to the world's second-largest economy as Spain seeks to strengthen its political and commercial ties with Beijing.

His visit comes at a complex geopolitical moment as European leaders try to influence an end to the U.S.-Israeli war in Iran, and as Spain's relationship with the U.S. has been strained by Sanchez's vocal disapproval of the conflict.

On Monday, Sanchez urged China to assume a larger role in a multipolar world, speaking at Beijing's Tsinghua University a day before he is set to meet with Chinese President Xi Jinping.

"China can do more. For example, by demanding . that international law be respec...