Abstract: In this study, Terror attacks and activities are becoming a significant global issue, including the prevention, response and recovery of terrorist acts. In this work, a bunker design based on three distinct soil types has been analysed and designed. Every bunker, however with most identical components and equipment, is always conducted with distinctive concepts and optimum procedures while analysing and designing civil structures at a facility. This article is thus based on fresh and distinct analytical, design and optimisation factors. One aim is to explore the distinction among the analyses and designs of modal analysis and the significant structures. In military bunkers, there are vast various devices sensitive to axial thrust and vibrations. The findings of the structure are discovered using 'ANSYS.' Optimum analyses lead to optimal design. Since disasters are shocking, all underground buildings have to be constructed to detect and monitored for various sorts of design disasters although some of these need maintain or survive the greatest earthquake movement.