In contrast to his rhetoric about China at home, President Trump spoke in conciliatory terms with Xi Jinping, the Chinese leader.

China’s top diplomat also warned against the restarting of hostilities as he met with Iran’s foreign minister. The U.S. has urged China to pressure Iran to reopen the waterway.

If President Trump flies to China as planned in May, the primary topic will clearly be the rippling economic effects of a war that Beijing has made clear it viewed as unnecessary.

The measures aim to crack down on Iran’s shadow banking system and Chinese purchases of Iranian oil.