The National Liberation Army (Ejército de Liberación Nacional - ELN) is one of the two main guerilla armies with left-wing political ideologies operating in the Colombian territory. Initially a Marxist-Leninist nationalist movement, it now appears more focused on kidnapping, extortion and attacks on economic infrastructure. And while it eschewed drug trafficking for decades, it has recently been linked to the narcotics trade and has sought alliances with large drug trafficking organizations (DTOs). Militarily, it has been greatly debilitated and has dropped from an estimated 5,000 soldiers in the early 1990s to close to 1,000.