Russia has no evidence of its claims that it prevented an armed incursion into Crimea, a NATO official has told the IBTimes UK as tensions mount between Moscow and Kiev. NATO said it noted Ukraine had strongly rejected Russia's accusations that Ukraine was preparing "terrorist acts" on the disputed peninsula and made clear that Kyiv is devoted to restoring its territorial integrity exclusively through political and diplomatic means.
International Business Times: No evidence of Russia’s claim of a Ukrainian armed incursion into Crimea, says NATO

Ukrainian MIG-29 fighters' (NATO reporting name "Fulcrum") pilots work practice their flight with models of aircrafts as they take part in the practical flights to fulfill the system of combat duty during the exercises at the Air Force military base in the small town of Vasylkiv, some 40km from Kyiv on Aug. 3.