[JamesP81]

Maybe, not sure. What he did worked to starve an army but an insurgency might be something different entirely.

Actually, I think it wouldn't. The march to the sea might've killed a lot of civilians, but it was the destruction of industry that the South couldn't afford to lose that decimated the South's ability to fight. Problem is that terrorists don't rely on industry to supply their 'war machine'.

[Mr. Lucky]

A theory I once had to expound upon in college was that Sherman’s tactics in Georgia were indirectly the result of Nathan B. Forrest’s success in interdicting Yankee supply and support systems.

[rhombus]

Problem is that terrorists don't rely on industry to supply their 'war machine'.

No they depend on secrecy and safe houses and the silence of the population they hide amongst. Violent terrorism during reconstruction was persistent and varying strategies were applied to smoke 'em out.