Challenges to national defence in contemporary geopolitical situation

New calls for global security today, since operations the era of uncontested military superiority of western forces is fading and western response can't simply be to avoid operating in these environments but we should start to think about essential to protection of our potential in industry, population and infrastructure. It brings us back to refitting of rock massifs for fallout shelters requires an increasingly better knowledge of the composition, internal structure, geometry and depth extent of the individual rocks. This paper focuses on the long-term strength of a wide range of rock types that can be refitted for shelters.