 They came into conflict with the Others, known to them as the Hostiles, as a result.They formed a tentative truce with them with strict territorial boundaries set for each side.The DHARMA Initiative began to decline around the 1980s (most likely following the "Incident"), and was virtually destroyed in 1992 when Benjamin Linus facilitated a massacre of the group, named "the Purge", orchestrated by Richard Alpert and the leader of the Others at the time (probably Charles Widmore, who is shown interacting with Benjamin Linus before the Purge, and is generally known for his ruthlessness).