Topic summary
Generational modern warfare

Extracted from the Wikipedia article Generations of warfare.
Fourth generation
The term "fourth-generation warfare" was first used in 1989 by a team of American analysts, including William S. Lind, to describe warfare's return to a decentralized form. In terms of generational modern warfare, the fourth generation signifies the nation states' loss of their near-monopoly on combat forces, returning to modes of conflict common in pre-modern times.