Just over a week after the U.S. dropped the so-called ‘Mother of All Bombs’ on ISIS fighters in eastern Afghanistan, a bloody attack on an Afghan army base has highlighted the country’s central security threat — the Taliban insurgency. The deployment of the 21,000 lbs GBU-43 bomb, the largest non-nuclear device ever used in combat,…

via What You Need to Know About Afghanistan’s Worsening Security Challenge — TIME