Washington’s new measures seen testing a recent bilateral detente with Beijing, and room for escalation remains, threatening trade, payments and supply chains.

Washington warns Iran-linked entities face removal from US dollar system as Trump presses world leaders to cut financial ties.

Washington launches campaign to isolate Tehran but it is unclear whether it would apply sanctions to China

Iran has vowed to retaliate against expanded US economic sanctions, warning Washington of attacks on vital interests and energy chokepoints if its infrastructure is threatened.…

Iran vows retaliation after the US expands economic sanctions, while Washington warns trading partners and China rejects sanctions and pressure tactics.