US President Donald Trump has threatened ‘economic D-Day’ on any countries that help or do business with Iran. Al Jazeera’s Mike Hanna explains how the threat, though vague, signal

US President Donald Trump has threatened ‘economic D-Day’ on any countries that help or do business with Iran. Al Jazeera’s Mike Hanna explains how the threat, though vague, signals a renewed focus on economic, rather than military, action.