Fourth-generation warfare (4GW) is conflict characterized by a blurring of the lines between war and politics, soldier and civilian. The term was first used in 1989 by a team of United States 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.