Norway–Sweden border

Based on that, in 1752–1765 border cairns were erected between Norway and Sweden including Finland, which mostly remain today.

In the Negotiations in Karlstad which led up to the dissolution of the union in 1905, Norway was obliged to tear down several fortresses along the border.

[citation needed] During World War II, when Norway was occupied by Germany and Sweden was neutral, many Norwegians became refugees and were transported or fled over the border.

South of Dalarna, the border in part follows local drainage divides, but also across lakes and along rivers.

[3] In Norway, the border lies along the counties, from south to north, of Østfold, Akershus, Innlandet, Trøndelag, Nordland, and Troms.

In Sweden, the border lies along the counties, from south to north, of Västra Götaland, Värmland, Dalarna, Jämtland, Västerbotten and Norrbotten.

To combat drug smuggling, the use of CCTV surveillance has recently been increased, with systems using automatic number plate recognition being rolled out in 2016 and 2017.

Passengers were led to the passport control at international airports, but could pass simply by showing the ticket and/or speaking and looking Scandinavian.

In 1959 the collaboration was formalised by an agreement on 28 October 1959, ratified in Sweden (K. Prop 1959:180) and finally the ratifications were exchanged between the Swedish foreign minister and the Norwegian ambassador on 30 December.

[7] The basic setting was a control zone stretching 15 kilometers on each side of the border where the officers from the other country could act.

There are around 30 more roads crossing the border, without customs station (most notably E16), but they are not allowed to use if having goods needing declaration.

After the introduction of automatic train control in the 1980s, drivers can easily get permission to drive on the other side of the border.