Taliban insurgents ambush an Afghan National Army checkpoint, killing 15 members of the security forces.
A shootout during joint exercises with U.S. and Afghan soldiers in Nangarhar Province leaves between four and six Americans, and six Afghans dead. It is unknown if the Taliban or rogue Afghan forces were responsible.
Taliban insurgents storm a checkpoint in Daykundi Province, killing eight Afghan Army personnel. After reinforcements were sent to the area, Afghan soldiers drive off the attackers, killing at least 20 of them.
The Afghan National Army abandons the western Shib Koh District after the government failed to resupply troops stationed there. The district, which borders Iran, is now effectively under Taliban control.