The 1st Division ( no, 1. divisjon) is a former unit in the

Norwegian Army The Norwegian Army ( no, Hæren) is the land warfare service branch of the Norwegian Armed Forces. The Army is the oldest of the Norwegian service branches, established as a modern military organization under the command of the King of Norway ...

, responsible for the defence of

Eastern Norway Eastern Norway ( nb, Østlandet, nn, Austlandet) is the geographical region of the south-eastern part of Norway. It consists of the counties Vestfold og Telemark, Viken, Oslo and Innlandet. Eastern Norway is by far the most populous region ...

along with 2nd Division. Following the

German invasion of Norway German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **G ...

in 1940 the Norwegian 1st Division, commanded by

Major General Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of ...

Carl Johan Erichsen, was responsible for defending the land areas on both side of the

Oslofjord The Oslofjord (, ; en, Oslo Fjord) is an inlet in the south-east of Norway, stretching from an imaginary line between the and lighthouses and down to in the south to Oslo in the north. It is part of the Skagerrak strait, connecting the Nor ...

against the invading troops. The division was not well prepared for the situation, the troops were not mobilized and the division's stores depots in

Fredrikstad Fredrikstad (; previously ''Frederiksstad''; literally "Fredrik's Town") is a List of cities in Norway, city and Municipalities of Norway, municipality in Viken (county), Viken Counties of Norway, county, Norway. The administrative centre of the ...

were captured by the Germans already on 9 April. The 1st Division was responsible for Fossum Fortress (Høytorp Fort and Trøgstad Fort) in

Askim Askim () is a town and a former municipality in (from January 1, 2020) Indre Østfold Kommune in the former county of Østfold county (from January 1, 2020 a part of Viken county), Norway. The administrative centre of the Askim municipality wa ...

and the Greåker Fort in

Sarpsborg Sarpsborg ( or ), historically Borg, is a city and municipality in Viken county, Norway. The administrative centre of the municipality is the city of Sarpsborg. Sarpsborg is part of the fifth largest urban area in Norway when paired with neigh ...

. The Germans started attacking on 12 April, and there were battles at bridges crossing

Glomma The Glomma, or Glåma, is Norway's longest and most voluminous river. With a total length of , it has a drainage basin that covers fully 13% of Norway's surface area, all in the southern part of the country. Geography At its fullest length, the ...

( Fossum Bridge, Langenes Railway Bridge, and a bridge near Kykkelsrud Power Station). Fossum Fortress was surrendered on 13 April. On 14 April a large number of troops in

Østfold Østfold is a traditional region, a former county and a current electoral district in southeastern Norway. It borders Akershus and southwestern Sweden (Västra Götaland County and Värmland), while Buskerud and Vestfold are on the other side ...

, around 3,000 men, chose to cross the border to Sweden instead of continuing the fight or surrendering to the German troops. At

Kongsberg Kongsberg () is a historical mining town and municipality in Buskerud, Viken county, Norway. The city is located on the river Numedalslågen at the entrance to the valley of Numedal. Kongsberg has been a centre of silver mining, arms production ...

two bataillons surrendered without fighting, while some officers and soldiers disagreed with the surrender and defended the Vinje district for about one month.

References

External links

* Order of Battle Military units and formations of Norway in World War II Divisions of Norway Norwegian campaign 1940 in Norway {{WWII-stub