Drones are “ubiquitous, because they are quite useful, and they're demonstrating that every day in Ukraine,” one analyst told NBC News.

Ukraine‘s surprise drone attack targeting dozens of Russian aircraft last week was a wake-up call for the Defense and Homeland Security departments to the emerging threats that unmanned aerial vehicles can pose domestically.

Costing as little as $400 apiece, Kyiv’s flying machines are successfully neutralizing sophisticated Russian equipment worth thousands of times more