Augmented Reality is an interactive experience created by implementing virtual objects in a real user environment enhancing their experience of information, image, sound and/or touch. In this way, the user increases his contribution during the interaction with the environment, which has multiple potential applications, for example in the training of military engineers. Utilization of augmented reality may improve education in military domain, especially in the situations of weapons and tools unavailability, such as COVID-19 pandemic when cadets are not in practical classes, and with technical material resources. This thesis also explores the technological possibilities of augmented reality, the knowledge of virtual and augmented reality in the cadet population, as well as the idea of using augmented reality in their military training. Also, within the work, a proposal of a software solution based on augmented reality for the education of cadets is designed. In the collaboration with the Faculty of Electrical Engineering and Computing of University of Zagreb, a solution proposal was made for the implementation of an augmented reality application prototype called HaubicAR with a 122 mm D-30 howitzer that serves to educate and test cadets' knowledge and present a howitzer model. The thesis describes a development process of application prototype. Also, prototype user testing has been conducted with the cadet population and the results have been analysed in the thesis.