Location selection decisions contain many factors that may be conflicting themselves. Today it is proven that location selection is a part of strategic management activity for armies. This research uses a location selection analysis approach for the maintenance facility for military armored vehicles using a multiexpert and multicriteria interval-valued intuitionistic fuzzy decision making method. The proposed method uses interval-valued intuitionistic fuzzy preference relation matrices to determine the relative importance of criteria. A new defuzzification method for interval-valued intuitionistic fuzzy sets is also proposed in the paper. A case study for the Turkish army is given in the paper.