The prospects for peace and security in the Americas improved as the cold war ended in Europe. Peace settlements were reached in the civil wars in Nicaragua (1989–90), El Salvador (1992), and Guatemala (1996). The Cuban government stopped providing military support to revolutionaries in El Salvador, Guatemala, and Chile. And Colombia's M–19 movement, El Salvador's Farabundo Marti National Liberation Front, and Guatemala's National Revolutionary Union transformed themselves from guerilla organizations into political parties. Nonetheless, as David Mares [has shown], Latin American countries have been involved in a militarized interstate dispute with a neighboring country on average nearly once a year for the past century.