It Started! - Russian Troops Entered Crimea

Russian soldiers, without any emblems identifying that they are Russian, took control of two airports in the Crimea. News agencies also inform that Russian helicopters enters Ukrainian, over Crimea, territory.

Officially, of-course, Russians deny those reports, according to them its militia forces and, BTW, one of the airports is military and belongs to them, Russian fleet, anyway. 

New Ukrainian government calls it as it is: invasion and occupation.

Ukraine: Russian forces invade Crimea

Ukraine Says Russian Military Blocking Crimean Airports and Roads