The work presents the problem of the safety of civilians in the Polish-Lithuanian borderland in the period of 1919 (the beginning of fighting for the Polish-Lithuanian borderland) until the dissolution of Central Lithuania. It focuses not only on political issues and the direct impact of warfare on civilian security, but also covers sanitation and educational aspects. Based on the analysis of sanitary issues and criminal offences on the Polish-Lithuanian borderland, the author analyses the issue of everyday life of civilians in the discussed area.