TUNISIA

An 18 March terrorist attack on a Tunis museum that killed 21, mostly tourists on a cruise, has been claimed by Islamic State (IS). With the country’s oil and gas output in precipitous decline, this risks knocking out a second pillar of the Tunisian economy – tourism.

Tourism accounts for 7% of the country’s GDP, a share that was much higher before the 2011 revolution that overthrew former dictator Ben Ali. Tunisia had hoped that 2015 would be the year that...