“The US military confirmed that it killed the Islamic State’s deputy emir for ‘Khorasan province’ in an airstrike in southern Afghanistan on Feb. 9, and the head of Shabaab’s external operations and intelligence branch in a separate drone strike in southern Somalia on Jan. 31. The US continues to rely on airstrikes as the core of its effort to defeat jihadist groups worldwide.”
Source: US military confirms it killed Islamic State, Shabaab leaders in airstrikes – The Long War Journal