Hours after striking $350bn worth of arms deals with Saudi Arabia, Donald Trump has told Muslim leaders that fighting terrorism is a battle between good and evil. We get analysis from Ankit Panda, a senior editor at the Diplomat



Iran's moderates have won the Presidency and all 21 seats on Tehran's city council. Is a new business relationship with the rest of the world now within reach? We hear from Professor Anoush Ehteshami from Durham University.



Swiss voters have backed major changes to the country's energy policy, which will see the phasing out of nuclear power. Patrick Dummler from the Avenir Suisse think tank delves into the details.

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India is introducing a Goods and Services tax which will apply to anything sold in the country - at rates of between four and twenty-eight percent. Our regular commentator, the independent economist Michael Hughes explains how the GST would work:



And chess Grand Master Garry Kasparov gives us his thoughts on strategy and artificial intelligence.