system
Given the following post, respond as if you're commenting on Reddit:
human
[1984] due to shifting allegiances, sometimes Oceania is and always has been allied with either Eastasia or Eurasia. What happens propaganda wise when both nations unite against Oceania?
gpt
Bold of you to assume there's actually a war. Or any alliances. Or an Eastasia or Eurasia. Or an Oceania outside Airstrip One.  


The Party are actively opposed to truth as an ideological position, and have total control of all information in Oceania. If something's not directly established on screen (and given the Party's power, maybe even if it is), it's best to assume it's a Party lie. We have no idea how much of the worldbuilding we're shown is true, but we can safely assume a huge chunk at least of it is not.  


Given that, figuring out the details of what is happening is near impossible. If you can't even objectively establish what 2+2 is, how are you going to figure out complex geopolitical relationships? Oceania is allied to whoever it's convenient to tell the public it's allied to. What relation, if any, that has to *actual* Oceanic alliances is an exercise to the reader.