See what he is afraid of
Ukrainian President Petro Poroshenko announced on Friday his decision to close the border to all Russians aged 16-60.
The decision was announced in the shadow of the new round of tensions in relations between the two countries after the incident in the Kirch Strait in the Black Sea when the Russians opened fire and captured three Ukrainian ships with their crews.
According to Poroshenko, the decision was made to stop Russia's attempt to create a "private army" on Ukrainian territory