on the outskirts of the city but also, russian armor had been hit by air strikes. they posted a leaflet at the cheat sheet for russians who might want to surrender, with a number to call of claiming they captured many who that they were on a training exercise. still, the pressure does appear to be building from crimea around to the west toward here in odesa with a broad question of, at some point, this third largest city has to feel some element of russian pressure if there is a sustained kremlin plan to sustain the broader economy of ukraine. so far this russian speaker cultural pot spot left kawhi. many here anxious that won't last. >> what more is the white house saying about how they would or would not respond to a chemical attack by russia? >> reporter: they're not really offering many details on what that would look like. you hear the reports about the