An optical observation device for target acquisition and navigation having at least one objective, which is to be turned toward the object to be observed, and at least one ocular, which is to be turned toward the eye of the observer, in a housing, wherein the housing has at least one image reversal system, means for range finding, for location/position determination, for determination of the compass direction, and for displaying data, is distinguished in that an integrated target acquisition module having optoelectronic rangefinder, a GPS position determination, an electronic compass direction determination, and a microcomputer unit for calculating and storing distance and location coordinates of a targeted destination, an integrated navigation module having a display screen, which is arranged externally on the housing, and actuating elements, which are arranged on the housing, for activating functions of the target acquisition and navigation module are provided.