Reuters/US Air Force file photo
A B-52 bomber drops cluster bombs over Afghanistan during the US invasion on October 7, 2001.
- On October 7, the US entered its 18th year of war in Afghanistan.
- What started as retaliation for the September 11, 2001 attacks on the World Trade Center in New York City has spiraled as insurgents like the Taliban have regrouped and restrengthened over the years.
- 2018 is projected to be the deadliest year in terms of civilian deaths.