Fredrikstad fortress (Fredrikstad festning) was a fortification in Fredrikstad, Norway. It was the base of the Østfold Regiment, with defence related responsibilities for the east side of Oslofjord.
Fredrikstad fortress (Fredrikstad festning) was a fortification in Fredrikstad, Norway. It was the base of the Østfold Regiment, with defence related responsibilities for the east side of Oslofjord. (en)
Fredrikstad fortress (Fredrikstad festning) was a fortification in Fredrikstad, Norway. It was the base of the Østfold Regiment, with defence related responsibilities for the east side of Oslofjord. (en)