Abbott’s triumph on biggest world stage, page-25

The two military aircraft in the vicinity of MH17 has been mentioned in previous news reports, also a Spanish air traffic controller who works in Ukraine alleged on social media that Ukrainian military planes were flying alongside the Boeing 777 over Ukrainian territory .

Two questions.
Why would Ukrainians shoot at their own military planes?

Why were there two Ukrainians military planes shadowing MH17?

Were they hiding from the russians separatists by flying beside MN17, who then shot MH17 by mistake?.

So far lot of questions, and that's all.

cheers