This paper explores Very Small Aperture Terminal (VSAT) technology and its application in military purposes. The paper covers the history of VSAT technology, the architecture and components of VSAT terminals, types of terminals, as well as frequency bands and link quality parameters. Furthermore, different network configurations are analyzed, including mesh, star, point-to-point, and hybrid configurations. Special attention is given to the applications of VSAT technology for military purposes, such as communication in crisis situations, small portable systems, the L3Harris Hawkeye III Lite system, and the use of Linkway systems for military purposes. The paper addresses multiple access methods, such as PAMA and DAMA, with an emphasis on their advantages and disadvantages. Finally, the reliability of VSAT links is examined in the context of weather conditions, satellite coverage, electromagnetic interference, and frequency band congestion.