The French and the Russians, for example, won asymmetrical wars in Algeria and Chechnya in the 19th century, but lost asymmetrical wars in those same places in the 20th century. “In the 19th century, there was not a literacy for nationalism. You look at a lot of these colonial wars. The great powers could play off tribes against each other. By the 1960s, you cannot do that anymore.”
I would aver that “nationalism” is only one of now available technologies that doom such adventures.