United States President - Donald Trump - has warned countries doing business with Iran that they will be barred from doing business with the USA. The early morning tweet affirmed Washington's unilateral decision to re-impose sanctions that went into effect at midnight despite the objections of US allies, particularly the European Union. The first of two tranches of sanctions snapped back Tuesday, after the Trump administration's decision to walk away from the multilateral agreement that placed limits on Iran's nuclear programme in return for reducing trade barriers with the Islamic Republic. Sherwin Bryce-Pease reports.
• Jameel Ahmad, Global Head of Currency Strategy & Market Research at FXTM
• Ebrahim Deen is a researcher at the Afro-Middle East Centre,