Delegates from the Mekong River Commission and leaders from the U.S. Army Corps of Engineers Pacific Ocean Division and State Department receive a briefing at Castaic Pumped Storage Plant in southern California, Aug. 15, 2023. Through the Sister Rivers partnership, the Mekong and Mississippi River Commissions conduct annual exchanges to enhance the Mekong countries’ capabilities to sustainably manage natural resources, share water data, enhance disaster risk mitigation, and strengthen local capacity for water management.