The Overseas Military Memorial Shrine Museum was built by engineers from the Ministry of Defence and was inaugurated on December 10th, 1967. The mortal remains of over 75,000 dead, of which 45,000 persons are unknown, are preserved. The dead were reported, following the abandonment of the war cemeteries constructed in overseas territories where the Italian forces operated during World War I and II (the Balkans, North Africa and Eastern Europe). The wide area, arranged as a park, houses the outdoor museum with relics and monuments to the fallen soldiers. The Shrine of the Casamassima Polish Military Cemetery which contains the remains of 431 fallen Poles from World War II extends from this museum.