Slivnitsa (Bulgarian: Сливница) is a town in western Bulgaria, 22 km away from Sofia, lying on the main road connecting the capital with the Bulgarian-Serbian border. Slivnitsa is part of Sofia Province and is close to the towns of Kostinbrod and Dragoman.

Called by historians the "battle of the captains vs the generals," referring to the young Bulgarian army, whose highest rank went up to a captain, the Battle of Slivnitsa was a decisive factor in the victory of the Bulgarian Army over the Serbs between 17 and 19 November 1885. It solidified the unification between the Kingdom of Bulgaria and Eastern Rumelia.

A small mountain named Viskyar stands out to the south and the southwest of Slivnitsa. The mountain's highest peak is called Mechi Kamak (Мечи камък, "Bear's Stone") and is 1,077 m high. Viskyar is rich in archeological and historical remains. Important strategic and commercial roads, connecting the southern end of the Balkan peninsula with the Danube River and Western Europe, have passed through these lands since Antiquity. An interesting sight is the memorial church, built to the southeast of the Gurgulyat village.

Dimitar Penev (Bulgarian: Димитър Пенев) (born July 12, 1945) is a Bulgarian football coach and former player and central defender of CSKA Sofia. He played 90 games for Bulgaria national football team and scored 2 goals. He is regarded as one of his country's best ever defenders, winning Bulgarian footballer of the year in 1967 and 1971, he also participated in 3 world cups for his country in 1966, 1970 and 1974. He is currently the Honorary President of CSKA Sofia and semi-pro side Nottingham United FC.

Penev was manager of the Bulgaria national football team during the 1994 FIFA World Cup, where his team reached the semi-finals and then lost the bronze medal game with Sweden. Throughout his career as manager he demonstrated excellence in both tactics and team psychology. Penev's most notable quality was his ability to work well with young players. During his career at CSKA Sofia he discovered a lot of previously unknown or little-known talented youths and used them as a basis for a domestically and internationally successful squad. Amongst them Hristo Stoichkov, Emil Kostadinov, Luboslav Penev, Martin Petrov, Stilian Petrov and Dimitar Berbatov. On 30 July 2007 he was appointed manager of the Bulgaria national football team for the second time. Last he was the manager of CSKA Sofia, on 6 March 2009 CSKA fired the coach, The Bulgarian team decided to sub him with his nephew Luboslav Penev, former player of CSKA Sofia, Celta Vigo, Valencia and Atletico Madrid.