This document summarizes large scale land acquisitions in the Mekong region, including Cambodia, Myanmar, Laos, and Vietnam. It outlines the agricultural structure and population dynamics in each country. It also describes the mechanisms, spatial patterns, and characteristics of land concessions in the region. The impacts of land deals are discussed, such as deforestation, land speculation, tenure insecurity, and conflicts. The document concludes by examining counter-movements and new regulations enacted in some countries to address the issues caused by large land acquisitions.