Kyiv [Ukraine], August 31 (ANI): Ukrainian President Volodymyr Zelenskyy on Friday fired Air Force Commander Mykola Oleshchuk, just a day after a tragic incident in which a US-supplied F-16 fighter jet crashed, resulting in the death of Ukraine’s top pilots, CNN reported. Zelenskyy said the command level of the Air Force needed to “strengthen,” but did not say whether his decision to sack Oleshchuk was related to the F-16 crash on Monday. “I am infinitely grateful to all our military pilots, engineers, soldiers of mobile fire groups, air defense units. To everyone who really fights for Ukraine…