CSCIS01Targeting behavior of vehicles in the battlefield (Target Analysis) is one of the most critical tasks in Computer Generated Forces (CGF) systems. This is simply because of many complex and ambiguous factors that can effect the targeting behavior of such systems in the real world. There has been many approaches including using Fuzzy Set Theory for for Target Analysis. Target detection, and threat analysis and selection are considered the main constituents of Target Analysis and selection. In this paper we introduce a model to illustrate how to apply a fuzzy relational equation algorithm to threat analysis in context of Computer Generated Forces systems as such ModSAF (Modular Semi Automated Forces). Using Fuzzy Relational Equations, the proposed algorithm generates the data from historic information and its earlier runs. Therefore, each new outcome of the algorithm is more realistic and more accurate than the earlier one.