From its beginnings, Ploče was a very important strategical point. A lot of military structures present nowadays were built during the World War II. Construction of these structures continued during the Cold War era and Yugoslav National Army soon made Ploče its base. During the Croatian War for Independence, the first naval battle was fought in Ploče Bay. Now, almost 30 years after the war, the army abandoned a lot of these structures which are perfect for exploration of the military past.