is this being called in ukraine? reporter: it is absolutely being called an invasion. and it is being called yet another invasion, in 2014, russian forces took over crimea, annexed crimea, made it part of russia. they also supported separatists who had been fighting an eight-year war. and then, now, just overnight, with that speech by vladimir putin and an issuing of formal decrees, russia is now recognizing the autonomy of those two areas. but i think it s important to go back to that map you just pulled up. and if one of your producers can pull up that map for a second. i think it is central to all of this. okay, right now, the pink area, those are the areas that the russians control. they are the areas that the separatists have had for about eight years. that pink zone is surrounded by trenches, so there is a fixed front line there. the brown area is the greater