The United States on Monday restored sanctions targeting Iran’s oil, banking and transportation sectors and threatened more action to stop its “outlaw” policies, steps the Islamic Republic called economic warfare and vowed to defy. The measures are part of a wider effort by U.S. President Donald Trump to curb Tehran’s missile and nuclear programs and diminish the Islamic Republic’s influence in the Middle East, notably its support for proxies in Syria, Yemen, and Lebanon. Trump’s moves target Iran’s main source of revenue – its oil exports – as well as its financial sector, essentially making 50 Iranian banks and their subsidiaries off-limits to foreign banks on pain of losing access to the U.S. financial system. The return of the sanctions was triggered by Trump’s May 8 decision to abandon the 2015 Iran nuclear deal, negotiated with five other world powers during Democratic President Barack Obama’s […]