None are a serious threat to national security, but each is capable of occasional acts of terrorism.
Nevertheless, the MIR remnants, under the leadership of the late Salvador Allende's nephew, Andr s Pascal Allende, continued to operate a small underground network in Chile. The MIR's principal leader, Miguel Enr quez, returned clandestinely to Chile in 1978 to revitalize the movement and organize for armed struggle and was soon joined by newly infiltrated cadres who had been trained in Cuba and Nicaragua. The security forces kept the MIR off balance, however, and Enr quez was killed in September 1983. Several new left-wing terrorist groups emerged in the early 1980s. Many MAPU leaders embraced Marxist positions, but the party was not a terrorist group.