Over the past year, a primitive type of WarBot has become a formidable battlefield weapon: the small unmanned aerial system. The threat materialized in October 2016 when a drone booby-trapped by the Islamic State killed two Kurdish soldiers. Within a few months, the Islamic State was flying tens of aerial bombardment missions each day, displayed the capability to drop grenades down the hatches of tanks, and reportedly flew up to a dozen aircraft at a time. The threat was so severe that the Mosul offensive nearly stalled.
President Putin made three foundational assumptions in launching his war against Ukraine that should have been correct but were not. First, Putin assumed the invasion of Ukraine would be a quick and easy fight. Second, he assumed the world would denounce the invasion but tacitly allow it. Third, Putin assumed the war would deter NATO expansion.
