Earthquakes as one of the worst natural disasters come suddenly and unpredictable. Depending on the strength they can leave quite a lot of damage, especially to the infrastructure in society. The area of Croatia and the region is subject to tectonic displacement, and it is very important to have a swift and effective reaction in the event of a strong earthquake, for the evacuation of the population from the endangered area and the extraction of their material assets. This paper deals with the topic of breaking the road route and overcoming obstacles to evacuate the population from the area affected by the earthquake, with the work of engineering military forces. Described and elaborated way of acting military forces in such special circumstances and situations. In the description of the action, the real potential of the engineering units was taken into account, respecting the parameters of the physical and technical systems that the engineering company possesses. The method of selecting and breaking the route using the mining and operation of the engineering machinery is also described. The organization of engineering works and their efficiency are described. The difference between civil and military roads and their use is defined. The structure of the engineering and machinery that are part of its units is shown. The threat of earthquake to the Republic of Croatia and the region and their consequences was also analyzed. In the end, a conclusion was reached on the role and importance of engaging engineering units in extraordinary circumstances and compared the way of managing military units in specific situations regarding to the engagement of civilian forces and assets.