Abstract: When evaluating Mobile Ad Hoc Network (MANET) routing protocols it is crucial to use a mobility model that most closely matches the likely real-world scenario. This paper outlines an agent-based synthetic warfare mobility modelling tool (called SWarMM) and presents a performance evaluation of IETF MANET routing protocols (DYMO, OLSR and AODV) using a SWarMM generated mobility model with the NS2 network simulation tool.