How much will Trump’s ‘economic D-Day’ sanctions hurt Iran?

Nearly six months after US President Donald Trump vowed a swift victory over Iran, the conflict appears to be at a standstill, with prospects of a military victory or negotiated settlement growing dimmer. To break the deadlock, Trump has vowed an “economic D-Day” under which any country that does business with Iran would face “tremendous” economic consequences. Iran, however, has long faced sanctions and has so far shown a willingness to endure pain and a capacity to adapt to immense economic and military pressure as the conflict drags on. The key question for the US then becomes, will further sanctions…