Trump re-imposes Iran sanctions

The re-imposition of the full panoply of sanctions against Iran that were waived under the Joint Comprehensive Plan of Action (JCPOA) nuclear agreement marks a high-point for President Donald Trump's foreign policy.

He had long objected to the agreement, which was seen by most analysts as one of the more significant foreign policy achievements of his predecessor Barack Obama.

Now the Trump administration's goal is to apply maximum pressure against the Iranian regime to compel it to think again and change what the Americans see as its malign behaviour in the region.

So what measures exactly are being re-imposed and what will their likely impact be? Will this mark the final demise of the JCPOA? And what is the real US strategy behind the sanctions effort? Not all of these questions have clear or definitive answers.