The idea of using mobile hospitals - a fully functional hospital is a system with a high degree of complexity - in case of a pandemic crisis, is not new, but shows how much they are needed. Solutions belonging to the category of mobile architecture are increasingly common, technical and logistic difficulties are solved in more perfect way. This applies mostly to objects with simple layouts and functional relationships, with relatively little technical equipment. In the case of healthcare facilities there are several factors increasing the difficulty: multitude of functional connections, sanitary requirements, technical equipment, and internal infrastructure. The Romanian military and civilian specialists from Bucharest Central Military Emergency University Hospital (SUUMC) showed that is possible to build a hospital as a modular and mobile structure in order to fight COVID 19, but the strategic actions and the effort needed to organize and run mobile hospital far exceeds the expenditure, protocols and specialized M.D.s necessary to run the stationary hospital.