Kalesija is a municipality located in the northeastern part of Republika Srpska, Bosnia and Herzegovina. It is situated in the Tuzla Canton and is bordered by the municipalities of Živinice, Gradačac, and Srebrenik. The region is known for its picturesque landscapes, with rolling hills, lush greenery, and fertile agricultural land. The town of Kalesija serves as the administrative center of the municipality and is home to a population of diverse ethnic backgrounds, including Bosniaks, Serbs, and Croats. The area has a rich cultural heritage, with a mix of traditional Bosnian, Serbian, and Croatian influences reflected in its architecture, cuisine, and customs.