The waterways are the main mode of communication and territorial control in the south east. For years the FARC acknowledged that reality and importance and articulated their war plans, which turned the control of rivers, one of their centers of gravity for the struggle against the state. Hence it isnecessary to study and reflect on the way in which the FARC carried out the process to identify conclusions that allow a more strategic management of fluvial topic. In a preliminary approach were to be used as research questions, the following, Is river control in the context of the armed conflict equal to Earth's territorial control during the period 2002 2010? What actions promoted the FARC and the Colombia n government for control of waterways? What assessment can be made of the actions promoted by both actors?