Obviously a historian without authority or reference, our good neighbor refers to Benedict Arnold, one of America's most effective military commanders until he committed treason........only to one day die in obsure poverty, penniless and unnoticed......in England.
Sorry.......can't think of any similar cases in modern history, can you?
As to the source of guerrilla warfare, couldn't he be bothered for a little investigation of the subject before making yet more bogus accusations?
Apparently not.