Mujahideen in Afghanistan or on the front lines of Korea or any of a dozen other proxy wars.
I do not count these as the Cold War.
Proxy wars have their special funding and maybe false motives, but they are hot wars. Real wars.
The Cold War consisted of threats. Piling up weapons, bombs, nukes, and counting and comparing who's got more of them. These threats were made mainly by politicians. Maybe I was wrong in saying they "fought" it.
I am using one and I found it quite unreliable. Sometimes too sensitive, catches motion that happens far away. Often blind, just ignores the most obvious motion.
Plan on combining it with sensors of other technology to compensate that.
This is how people brainwashed by capitalism would use it to deprive us all of the post-scarcity future.
That doesn't work out. Unfortunately.
Reason:
When it was politicians who fought the Cold War, they were few who had actually a say, and these few got some minimum brain, at least.
But in your scenario, it is random jerks who execute that scheme everywhere. There will be some who pull the trigger just for ... all kinds of stupid shit that has triggered them. So you'd have nukes going off somewhere, at least every few days, and then nobody can really rule the world anymore with them. The power of the threat will be gone.
And then another on the next day, and then another etc. When I have got a dozen of them, I let them loose on the real one and on each other and watch whatever happens.
Orange is a huuge disappointment.