This report summarises the research from the fiscal year 2007 within the Swedish Defence Research Agency in the domain of Modelling and Simulation. In the report you will find a summing-up of the research domain and the national and international development. The results of the research are summarised and the activities in each project are described. Efforts have been made to increase the competence in modelling and simulation generally as well as within specific areas. FOI research into M&S is aimed at supporting the Swedish Armed Forces by developing and assessing technologies, methodologies and tools to be used in a range of modelling and simulation applications.