"We start to see the effective strategy here. It is perhaps not a conscious one in anyone's mind. (For example, it is quite plausible that the mixed messages sent about Sumter were simply a result of disorganization in the early Lincoln administration, although the conclusion that Lincoln, despite his speeches at the time, wanted a war and was happy to get one is unavoidable. It is really difficult to understate Lincoln's sincerity.) Nonetheless, the strategy works quite well.
The approach is one of camouflaged predation. Perhaps it can be summarized as: "kick the dog until he bites, then shoot him." Press your target, using blows that hurt but do not draw blood, until he finally snaps and bites back. Then it's time for the Glock. The resulting execution appears to the casual observer, who misses the kicks or can be persuaded not to see them, as a simple case of justified self-defense - putting down a biting dog.
We have an explanation for feature B, the tendency of the weaker party to attack. It is what an animal trainer would call fear biting. Moreover, the dog that does not fear-bite is liable to be kicked to death. Sovereign rights, when not defended, tend to vanish."