Well, heck, Michael Collins’ campaign against the British leading to Irish independence was a textbook terror campaign, both urban and rural.
Quite true. Although much of it was directed at police, who can at least arguably be considered legitimate targets, depending on their function.
In Britain even the suffragists became terrorists. We’ve never had a true terrorist campaign in this country, in the same sense. Except for the Jim Crow types in the South during the late 19th and early 20th.