Biden said earlier he had ordered the Pentagon to plan how to strike ISIS-K, the Islamic State affiliate that claimed responsibility for Thursday’s bombing. Afghanistan’s Islamic State affiliate, known as Islamic State Khorasan (ISIS-K) after an old name for the region, appeared in eastern Afghanistan in 2014 and later made inroads into other areas, particularly the north. BLASTS IN JALALABADA US official, speaking on the condition of anonymity, said the drone strike was against an Islamic State militant planning attacks. A reaper drone, which took off from the Middle East, struck the militant who was in a car with an Islamic State associate. Biden has defended his decisions, saying the United States long ago achieved its rationale for invading the country in 2001.