Irony.
The Russkies aren’t going to invade Ukraine, that much is clear. They were threatening this even on the 3rd and 4th of July before Strelkov fled, leaking to Ukrainian sources and media that Putin was going to invade within “48 hours” due to Ukraine’s “aggression” against the separatists.
Every so often the Russkies move their forces to the border, then remove them, then bring them back again, putting over the Ukrainians the specter of invasion. It is all just empty intimidation. The Russian vehicles were marked with “peacekeeper” slogans for months now.
The Russkies operate using provocation and unmarked military, and are dependent on the weakness and cowardice of their victims to succeed, which has always been the case with the gutless but mass murdering communists. When they are faced with an opponent that doesn’t react to terror, their strategy starts to collapse.