How do you think, what is the most difficult to prove? The president of the Russian Federation Vladimir Putin presented to the whole world his vision of the answer to this question. It appears the obvious things are the most incredible to prove. All Russian actions aimed to break down the international law and stability in the world hide conveniently behind this Putin’s formula. Let’s take illegal annexation of the Crimea. The Kremlin presented it as the Crimeans’ will and a return of the peninsula into the motherland’s fold: “Any violence! Fair referendum and point!” However, there are many proofs that it is nothing, but the armed occupation of the other state’s territory. “Prove it!” - Putin is mocking. Another example - unleashing of armed conflict in Donbass and creation of the so-called DPR/LPR separatist entities. Everything is obvious, once again. There is a set of evidences of direct Russian military aggression and presence of the Russian servicemen there. The Kremlin says: “We are not present there. Prove it… Only miners and peasants are at war with the Ukrainian junta, using equipment and arms which they bought via the Internet in the world Army Surplus...” What about civil Boeing? Who did shoot down it? Anyone, beginning from drunk Ukrainians and finishing by aliens, but only “not us”. Although, the obvious facts will become a trial subject with the obvious verdict soon. Apparently, using of the chemical weapon in the Great Britain is evident! We can hear again: “It’s not us. Prove it…” What are we dealing with? The Free World put up with it. Sanctions have been declared for conscience’s sake. Nevertheless, cooperation with the aggressor continues: Northern and Turkish Streams are being built; Mr. Putin is being received as an honorable guest at weddings and festive events, orban, zeman, salvini dote on Putin. Finally, there is a new fact of the Kremlin’s aggression against the sovereign state. Having annexed the Crimea, thanks to the constructions of Kerch Straight Bridge (besides illegal), Putin cynically realizes the project of the Azov Sea blockade. Naval Forces of Russia carried out a naked military action against the Ukrainian ships to receive a formal reason for full closing of the Kerch Strait and blockade of the Ukrainian ports on the Azov Sea. Everything is extremely obvious! This time things have gone far enough and presented a risk of a direct military clash with Ukraine with unpredictable consequences. Dear Sirs in Brussels, Bonn, Paris and Washington, is it obvious for you now that you should react rigidly to this accident up to rendering effective military support to Ukraine? Or do you still need any more evidence else?!