The text deals with the use of border defense as a means of protection against guerrilla attacks and infiltration. through a combination of principles of modern stationary fortifications and forward area defense. These are discussed on the case study of the Northern Border Security Project of Saudi Arabia. The role of attacker takes quasi-state formation the Islamic State (IS. https://www.bekindtopets.com/hot-offer-Stuart-Product-Emcelle-Tocopherol-Vitamin-E-Liquid-1-Liter-hot-value/