The Trump administration’s early rhetoric has shown a ruthlessness to Tehran but the US is unlikely to scrap the nuclear deal or disrupt its alliance with Saudi Arabia.

Tehran has given the incoming administration of US President Donald Trump an early test of its Middle East policy by launching a ballistic missile test. The test breaches the spirit if not the letter of a 2015 UN resolution passed soon after the international deal on the dismantling of Iran’s nuclear program.

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