US President Donald Trump‘s fledgling administration has spent the past week trading barbs with Iran, marking a sudden escalation of tensions between two nations whose icy relationship was just beginning to thaw.
Travel bans, missile tests, sanctions and insults have been ping-ponged in a provocative show of force by both sides. It all raises concerns over the future of a deal, brokered by the Obama administration, that requires Iran to heavily restrict its nuclear program.