That's with trusted parties where that type of collaboration is less likely to happen between parties that are hostile to each other. I would not expect blank country to trust any blank adversary countries software and instead be wary of their motives and back doors, and they would be smart not to with both sides seeking each other harm.

I don't think you understand that I am viewing this from how sides that see each other as potential threats view and treat each other. Not talking about countries that are already collaborating as if they were allies.

In case you don't understand. I am not claiming that countries do not spy on their own citizens and seek methods to spy even more on them. I'm talking about how countries can react to countries they label as adversaries.