US warns Russia against intervention in Ukraine
UNITED NATIONS (AP) — The United States warned Russia on Friday that any further intervention in Ukraine, including under the pretense of delivering humanitarian aid, would be viewed as "an invasion of Ukraine."
Power said Russia has not only increased aid to the separatists but has amassed "more and more" troops and hardware near the border, began extensive military exercises this week and launched shells across the border into Ukraine.
"Therefore, any further unilateral intervention by Russia into Ukrainian territory, including one under the guise of providing humanitarian aid, would be completely unacceptable and deeply alarming, and it would be viewed as an invasion of Ukraine," Power warned.
I wouldn't draw a false 'red-line' with Russia, because they'll take a lot of latitude with it in the future.