> They need to first communicate with one another in their nationThis is misguided, naive, and even arrogant. Instead of playing the group identity game and anthropomorphizing lawnmowers, imagining what someone must do, you need to understand how totalitarian systems work, there's no "government" and "people" as separate entities to clash, and no "dictators" either. There is simply no "they" to communicate to one another, and there's no communication/organization possible, as the system removes any means for doing that. Paradoxically, any totalitarian system is decentralized and stuck in the local optimum.
Totalitarian systems are perfectly in balance while being isolated, and in fact always move towards self-isolation - take imperial Japan, USSR, or any other similar society. When your goals are the same as those systems', you should take a long look at what you're doing. It's often said that "Jeans brought USSR down", meaning the cultural influence of outside world. Discarding that is just stupid, it's the most fundamental leverage you have at your disposal.