The navy is a tool of state policy, including in particular security and foreign policies. Despite the fact that the division of policies in question and the systemic approach to the state’s security strategy emerged in research after the end of the Second World War, naval forces have always been a response to the projected external threats to the state and a means to achieve political goals. This article addresses the problem of assessing the use of the Navy as a tool of the security policy of the Second Republic of Poland. In this approach, the subject of the study is the policy of the Polish state in the years 1918-1939 in terms of ensuring security, mainly in terms of access to the Baltic Sea, and then its use and concept of defense in the light of the geopolitical conditions of the time. In order to realize the aim of the study, the author analyzes the influence of geopolitical conditions on Polish security policy, the tasks of the Navy of the Second Republic of Poland, and changes in its potential.
