Dramatic video Thursday showed a Ukrainian drone attack on a military airfield in southern Russia as Kyiv launches an expanding wave of strikes deep inside its neighbor's territory. Through the huge plumes of smoke filling the sky above the air base, three small explosions can be seen as a man driving through the flat landscape points his camera at the fire and delivers an expletive-laden rant. “There it is flying by, f---. F---ing flying over again. ... It’s a serious tragedy, folks. This is serious stuff. It’s all f---ing on fire," he says. "That’s really something else. And all the...