Ukraine? No, absolutely not. Carolus Rex tried that and failed miserably- and he had much better political situation in S.Russia than Napoleon. Strategically, logistically and politicaly invasion of Ukraine was the worst possible option.. don't count on local support, there was not significant polish population eastern of austrian Lamberg/Lwow, cossak uprising supporting Napoleon invasion is a pure fantasy, and the Ottomans were completely incapable of launching any kind of offensive operation in Russia, they were constantly beaten and humiliated in Russo-turkish war by smaller russian forces, in their own territory (also they were not able to suppress serbian uprising for almost 10years! the Ottomans invading Russia & trying "to take Crimea" in 1812 is impossible scenario); climate, population density, road infrastructure were not much better either (probably even worse, especially further east); not to mention strategic nightmare - completely exposed flank and rear to imminent russian coutnerattack from their armies concentrated in Belorussia... Kiev (abandoned and burned) is a death trap for Napoleon and his depleted army, without any hope to even retreat back to Poland (or austria, entire operation is depended on austrian support). Then what? Go for Baku oil fields?