Tell me then what was the roll of the Powhatan, Aber Doubleday, Major Anderson, and Fox's fleet in forcing South Carolina to act?

Why did Anderson burn Fort Moultrie and occupy Fort Sumter?

Why did Lincoln annouce he would force his way into Fort Sumter while at the same time force his way into Fort Pickens?

International law, at the time, states an aggressor nation is one that forces another nation to defend itself to the point of action. This is exactly what Lincoln did.