with rising demands on limited water supplies, tensions can arise between that share a transboundary water resource. the Mekong River runs through 6 countries - China, Myanmar, Thailand, Laos, Vietnam and Cambodia, impacting over 300 million people. as of 2020, those countries (not Myanmar) have commissioned plans to build over 200 dams on the river and its tributaries for irrigation, flood control and production of hydroelectricity. Cambodia and Vietnam, which hist the lower course of the river, are concerned as they're likely to receive much lower flow rates if the planned dams go ahead