RT
They are OK in the sense that you can go there rather than having massive blocks of airspace as no go areas but I would very much doubt flying into Kiev that you could then trundle off willy nilly VFR to some little airfield somewhere?
i maybe wrong as I only fly Corporate Jets IFR and know the designated and approved routes in are so controlled that I cannot see that level of freedom VFR.
i also know that with Jet A1 even as a private jet you have to have a trading approval which is hard to get.
The only way around that is to operate under someone else's banner and approval and pre buy fuel through them. But maybe its all different in a piper single spam can and avgas? Just watch you don't get popped at
Pace