8 of the 23 South Koreans held hostage by the Taliban in Afghanistan are released, while one of the hostages is executed. The Taliban gives further warning that the remaining hostages will be killed.
- An Afghan soldier kills 3 U.S. troops and injures 1 other in Achin, Nangarhar Province. The Taliban claims responsibility, saying the Afghan soldier was one of several Taliban infiltrators in the Afghan Armed Forces.
- A Taliban raid kills at least 20 Afghan police officers in southern Afghanistan.
- The Afghan Minister of Defense, Abdullah Habibi and the Chief of Staff of the Afghan National Army, Qadam Shah Shahim, resign after a Taliban attack on Camp Shaheen near Mazar-i-Sharif that claimed over 140 lives.
- Taliban insurgents attack an Afghan military base in Mazar-e-Sharif, Balkh Province, killing more than 140 soldiers. It is said to be the deadliest attack of its kind
- Russian Special Envoy to Afghanistan Zamir Kabulov denies allegations by NATO Commander Gen. Curtis Scaparrotti that Russia was "perhaps" supplying the Taliban.
- Taliban insurgents seize control of the strategic town of Sangin in the southern Helmand Province after a year-long battle with Afghan security forces.
- The Obama Administration and Bush Administration had failed to publicly disclose up to thousands of lethal airstrikes the U.S. made in Afghanistan, Iraq, and Syria against ISIL, Al-Qaeda, and the Taliban via U.S. Army helicopters and drones.
- The Special Inspector General for Afghanistan Reconstruction releases a report on Afghanistan, saying that the Afghan Armed Forces are not capable of securing the country and have lost more territory to the Taliban, the most since the United States invasion of Afghanistan in 2001.
- Battle of Boz Qandahari: Two United States military personnel, four Afghan Commandos, and 30 civilians are killed in clashes with the Taliban in Kunduz province, Afghanistan.
- Taliban officials make an offer to protect national interests such as copper mines and an international gas pipeline to assist the development of Afghanistan.