The Golden Triangle is a loosely defined region in Southeast Asia where the borders of Thailand, Laos, and Myanmar (Burma) converge, centered on the confluence of the Ruak and Mekong Rivers.
From the 1950s through the 1990s, the area was the world's largest opium-producing zone. Remote mountains, weak central governance, and ethnic militias created ideal conditions for poppy cultivation, heroin refining, and international trafficking.
Multiple ethnic armed organizations (e.g., United Wa State Army, Shan State Army) control territory, complicating law enforcement and development efforts by the three national governments and international agencies.
Once synonymous with the global heroin trade, the Golden Triangle today is a region in transition—still fragile, but increasingly integrated into legal economies and regional cooperation frameworks.