China is sending 400 rocket launchers to Iran under a new deal underscoring their increasing military ties. In April, US intelligence indicated that China was preparing to sell the systems to Iran. Meanwhile, maritime traffic data suggest China has continued to purchase oil from Iran since the war, putting money directly in Tehran's coffers. Xi's promise to TrumpAfter initial reports about secret arms deals with Iran in May, the US president claimed his Chinese counterpart promised not to send weapons to Iran. Saudi Arabia joined a US attack on Iran overnight after previously carrying out secret strikes against the country.