Sovereignty Day is observed in Slovenia every October 25, commemorating the final withdrawal of the Yugoslav People’s Army from Slovenia in 1991. This day marks the conclusion of a significant historical event, as Slovenia declared its independence from Yugoslavia on June 25, 1991, which led to the Ten-Day War. The last Yugoslav soldier departed Slovenia on a ship from the port of Koper around midnight on October 25, 1999. Sovereignty Day was initiated by two veterans’ societies and officially proclaimed by the National Assembly of Slovenia in March 2015. Although it is not a non-working holiday and lacks nationwide celebrations, local commemorations are organized at the municipal level. The day serves as a reminder of Slovenia's struggle for independence and the importance of sovereignty.