KABUL, Afghanistan—When Afghanistan’s President Ashraf Ghani took office, he ushered in a period of hope for the country’s traumatized and war-weary people that decades of violence would soon end. But just one year later, British troops are deploying to help beleaguered Afghan troops regain control of a strategically important district in poppy-producing Helmand Province, and many Afghans now believe the Taliban are winning.
The development came a day after a Taliban suicide bomber killed six U.S. troops near a major military base—the deadliest day for American troops in the country since 2013.





