other residents left to run for cover. translator: we were on the eighth floor with my 4-year-old son. we first ran to the corridor, and then down the fire staircase to get outside. reporter: as you can see, this building sustained some pretty substantial damage, and the drone attack went on for several hours last night, with the drones hovering over the city center and ukrainian air defenses frantically trying to take them down. ukraine s military says it shot down 29 of the 31 uavs the russians sent. kyiv s mayor vitali klitschko comforting his citizens, and telling me western air defense systems kept many people here safe. if we didn t have our defense, modern defense from our partners we have much worse situation in our hometown. more destroy the buildings and it will be more civilians killed. reporter: but russia has already threatened massive retaliation after the drone attack on moscow, leaving people in kyiv and elsewhere bracing for what could be worse to com
to get into moscow and damage some in areas, elite areas of the city? not surprised at all. counterdrone operations have been some of the toughest challenges we ve had in u.s. military. the fact that they are if they are knocking down as many as they are, surprises me, because three years ago, we virtually had no counterdrone capability. you just had to shoot it out of the sky. if you look at the iraq embassy, the u.s. embassy in iraq, they are always afraid of this. so this is relatively new technology. it s sort of a manhattan project being done inside the military right now. but the drones are some of the deadliest systems on the battlefield. that s interesting. it s counterintuitive in a way because they re smaller. they re low, slow, hard to detect. radars are not designed to do that. right. it s interesting, though. it s counter inopportunititive. yeah. because it s not a big