Ilomantsi is the only municipality in Finland that saw major division-level battles during the Winter and Continuation Wars in 1939–1944. An estimated of 50,000 men took part in fighting in Ilomantsi. Ilomantsi Battlegrounds Trail is a 150-kilometer-long network of roads. All locations of military historical interest outside the border zone are accessible either on the roadside or in its immediate vicinity. These include dozens of memorials, information boards, museums, buildings and restored fighting positions. They give a visitor a comprehensive understanding of Ilomantsi's unique wartime history.