Nine months ago, Ukraine was near collapse—short on troops and money and losing ground. A surge of robots, drones and tech has flipped the war, turning Ukraine into a frontline startup military that's now challenging Russia’s larger force. 0:00 Robots and tech have given Ukraine new firepower 1:15 Nick Patton Walsh and CNN crew take cover from Russian drones 2:30 Drones attack Ukrainian troops 5:45 Inside mission to attack Russian troops with robots 11:17 Ukraine launches a wave of drones into