My Dad had a friend from the Navy who wrote parallel-history novels rather like that.
The thing about this is that if it weren’t 25 years in the future, you could believe it was history, plain and simple.
The books start in Benghazi, with an assassination plot on the ambassador, that the four men decide not to carry out, but someone else does. In the ensuing years (next book) the men are eliminated, one by one, until only one is left, and he was imprisoned for three years. When he gets out, he goes to Alaska.
I read long past the yawn stage because it’s so good, and I don’t want to go to sleep! LOL!