The BRIDGE project of the IUCN (International Union for the Conservation of Nature) deals with the management of water in the transboundary hydrologic basins in Central America, South America, and in the Mekong Region of Asia. There are more than 270 transboundary water regions around the world.
According to Alejandro Iza, Director of the Center for Environmental Law of IUCN, "The rivers and streams often establish boundaries between countries and cultures. This causes water conflicts . Conversely, diplomacy and sound management of resources promote peace and cooperation ". BRIDGE aims to establish transboundary management of water under the principle Water Without Borders.