The report presents all current challenges which the Bulgarian military educational system is facing in the context of the basic features of the security environment and trends for the first half of the 20th century, by identifying the main problem areas in its functioning. The status and the capabilities of the military - educational system of the Republic of Bulgaria are discussed on the basis of conducted analysis about key strategic documents in the sectors of education, security and defence, as well as the current state of the military and civil education and the inherent activities of the training institutions. Outlined are the basic principles of construction and operation of the military - educational systems and the fundamental strategic goals and tasks according to modern strategic security environment and dynamically changing conditions in NATO and the EU. Described are the main elements of the military - educational system as a complex, adaptive and flexible system that develops in unity and complementarity with the system of civil education in Bulgaria. Guidelines are formulated for improving the military - educational system in relation to its contribution to strengthening national security and defence of the country in three directions - conceptual, organizational and technological improvement