I tried a game as Hungary with the foreknowledge that Romania is going to invade me soon after Hitler's death. I built a line of forts, railways to get supply into North Transylvania, and updated my divisions.

Even with all my preparations, Romania stomped me into the dirt. My airforce was nowhere near big enough to combat the Romanian one, holding the mountains nigh but impossible, and I have to last >100 days.

Is there any strategy anyone had found to hold back - if not defeat - the Romanians?