Decoded | What is Islamic State-Khorasan that launched deadliest attack on US forces since 2011

The Islamic State-Khorasan has claimed responsibility for the attack outside the Kabul airport. Here is all you need to know about the outfit.

Multiple bomb blasts at the Kabul airport on Thursday night were the deadliest terror attack on US forces in Afghanistan since 2011. Thirteen US soldiers were reported killed in the terror attack that left over 100 people dead. The last time US forces lost so many soldiers was 20 years ago when the Taliban had shot down a Chinook transport helicopter near Kabul, killing 30 personnel.