The main purpose of present bacalar thesis is complex focusing the fate of citizens of Ružomberok, who particaped in the Spanish civil war in 1936 – 1939. The thesis consist of three main chapters in which we map the life stories of Ružomberok citizens who, as international volunteers joined the civil war in Spain. In the first chapter, we will draw attention to Jozef Májek, a former teacher and bank clerk who fell in defense of Madrid. In the next chapter, we will be dedicated to the Černová native Štefan Fula and Štefan Kuniak, who served in the 129th International Brigade. In the last chapter, we will deal with later comander of Gottwald 's anti-aircraft battery, Ladislav Holdoš.