
David Cameron was the first world leader to meet Afghanistan's new President Ashraf Ghani and his recently defeated opponent in the presidential race Abdullah Abdullah, October 2014. Dan Kitwood/Press Association. All rights reserved.The long war in Afghanistan was a major issue for Barack Obama's administration, and one that the new United States president inherited in January 2017. In his second term from 2009, Obama had tried to force the Taliban and other armed opposition groups (AOGs) to the negotiating table, through deploying 30,000 additional American troops. But even this "surge", which had taken the number of western troops in the country to 140,000, proved insufficient (see "Trump's Afghan test", 16 February 2017).
In these circumstances, Obama decided on a policy of military withdrawal. Washington placed its new hope in training and equipping the Afghan National Army (ANA) to the point where a reasonable degree of security could be maintained. All but a handful of troops were to leave, including most of the 30,000 provided by coalition partners, with the UK foremost among this group. But even that did not work out, as spreading insecurity delayed the pullout schedule. By the end of 2016 there were still around 14,000 foreign troops in Afghanistan, as well as many thousands of private military contractors.
Donald Trump’s administration is now facing a further deterioration in the security environment. A wave of attacks in the past week alone demonstrates the scale of the challenge.