He is the Commander in Chief, the top dog, whatever you want to call it. Basically, what he says, goes.
He has limited role, authorising situations that can make things worse if the go wrong. In a war the defence minister and military command centres make the decisions.
Truman
Start with President "Polk"
probably start a war
yes
GO to war not go to war and/or mess up the economy/eco-money?
yes
Probably start a war
No.
It requires the president to go to congress to declare war.
I'm not sure which war your talking about, I'll assume it was the Anglo-Burmese War, Of which they went to War with Britain over Control of Northeastern India.
No.