A very convenient mechanism for exploitation of uncertainty and vagueness in decision making is fuzzy logic. This paper shows practical application of fuzzy logic in the Armed Forces of Serbia through an example of selecting the location for setting a bridge for crossing a water obstacle. By the fuzzy logic system inexperience of the decision maker is minimized. This demonstration is even more significant considering experience of some experts gained during combat activities. The criteria relevant for the choice of a bridge crossing point, as well as their influence on the choice of the alternatives, have the values displayed in numerical values or fuzzy linguistic descriptors. By analyzing the results obtained, we can conclude that the developed fuzzy system can successfully evaluate the chosen locations and formulate the strategy of decision-making in the choice of the location. This book should hlep shed some light on modelling of fuzzy logic system to support decision making process, and should be especially useful to students who have interest in fuzzy logic modelling, or anyone else who have interest in operational researchs.