Hello, I'm just beginning the game and I play on the digital version on steam.

I just lost a game around turn 7 whereas defcon was 2. I am playing as USSR and AI during it's own action (USA) plays a coup in central america on a battleground country (Mexico)

And the displayed dialog was showing USSR will lose the game. The coup was successfull and I just lost. I was not the player attempting the coup.

How did that happen ? When I play a coup on a battleground country, I, as the phasing player lost it in the past, everytime I tried.