Gunmen loyal to Bosnian Serb nationalist leader Radovan Karadzic conquered 70% of Bosnia with their arsenal of tanks, aircraft and howitzers bequeathed by the Yugoslav army.
More than 35% of Bosnian remains unconquered by gunmen loyal to Bosnian Serb nationalist leader Radovan Karadzic.
If 70% is conquered then it's impossible for more than 35% to be unconquered.  The AI doesn't seem adept at understanding double negatives, I doubt it would understand the phrase "The enemy of my enemy is my friend".