I'd call the that country that adopted EV's first and gasoline second... extinct after WW2. If nothing because the country wouldn't be able to launch an airforce to counter the bombers hitting your power plants. If not that then there's the constant contention of having to pull power lines forward and leaving them vulnerable to artillery fire while the petrol tank hit and run with impunity.

Plus now you have problems moving tonnes of food, water, ammunition on BEV vehicles that no longer have reliable charging access. Being unable to supply your military is more or less a death knell for any fighting force.

Even setting aviation aside, a lot of the reason why gas engines were adopted was because agriculture was among the first to do so, they were less finicky then ox and horses. Rural areas didn't have access to electricity like cities did at the time though; It was a lot easier to have a tin of whatever liquid fuel (gasoline was a byproduct of kerosone production at the time).