A window of opportunity 1905

Indeed indeed - though there is no guarantee of a rerun!

So the Naval battle of Göteborg/Vinga was the only major battle in the 2nd Norwegian War of Independence.

Was the RN already in the erea waiting to intervene ore dis they arrive during the battle and what where there orders, to observe ore to engage.

23. September 1905:
Getting detailled information of the events on the march on Kongsvinger the Swedish General Staff decided to halt the advance halfways to the town/Fortress though getting the orders through took time and by then the Swedish 1. Army had reached Kongsvinger preparing to cross the Glomma though not without loss to Norwegian snipers.
Locally attempts were made to use trails for encircling Norwegian defenders which usually proved possible if not defended by too large units. Resupplying such moving units that didn't reach own units at the end of march proved close to impossible mostly from Norwegian guerillas cutting off communications and withering down the lost units.
The difficult terrain in the area proved the best ally of the defender.

Further south the Swedes had a better time.
The Norwegian defenders had evacuated Halden and moved along the coast back to Frederiksstad to cross the Glomma into safety. Without a Swedish landing on the east coast of the Kristiania Fiord this proved possible.

The Bohus Detactment had been ordered up through Halden to assault Sarpsborg taking advantage of the railway line for supplies.
It proved to be the one assault on the Glomma Line to almost breach it though in the end the expenditure of artillery shells and other munitions made for the assault to be called of.

Sarpsborg served as the place of rotating troops in and out of to keep casualties down and the place where the Danish 26. Reserve Battalion and Hussar Squadron would also see service during the breif war.
The flexible use of the Hussars light machineguns to stop Swedish advances in critical areas not covered by the deployed Hotchkiss heavy machineguns convinced both Danish and Norwegian officers that this would be the integral supportweapon of the Infantry in the future.
Later reports from Sibiria would confirm this as the Russian Army had also made good use of their Madsen light machineguns.

Peace talks:
During mid-October the warring parties met at London for peace talks; present were of course representatives of the Great Powers.
There had been some writings in newspapers about the conduct of war by the Swedish Army in Norway and a few of the Norwegians had some difficulty in sharing the table with the Swedish representatives even though these did talk of excessive use of violence during the conflict by some Swedish troops though insured the Great Powers representatives that any such would be tried and punished accordingly if found guilty though they also expressed the view that the actions of Norwegian civilian franc-tireurs were against the laws of civilized conduct of war!

Prior to convening at conference and as part of the cease-fire terms Denmark and Norway had officially lifted the Naval blockade of Sweden. It had not been effective since the battle of Göteborg/Vinga anyway mainly because of the loss of ships and thus means of enforcing it partly because Denmark and Norway well knew it would probably be to their benefit with the Great Powers. With the Swedish Navy in a similar state things had naturally cooled down.

The land border had been demilitarized for five kilometers which had been patrolled by British officers on the Swedish side and German officers on the Norwegian side; though only in the south at a few places in the center west of Trondhjem and at the Ore Railway border crossing east of Narvik.
With the Great Powers in unison on the subject matter Sweden had to fold and the Norwegians and Danes lift the blockade and return ships seized and crews interned. Of course prisoners of war would be exchanged too at predestined points.
The stories of the massacre and burning of Norwegian villages on the march on Kongsvinger went around the world.
Military attaches and observers were much more interested in the actual fighting and supply of the Armies as well as the Navies and ammunition consumption which had exceeded all expectations. Generally however such would be attributed to the amateurish handling of logistics in backward second and third rate militaries.
The effect of machineguns seemed to mimick that seen in Manchuria and would be something to take note of.

Norway was still a Kingdom but an independent one with its new King being the son in law of King Edward 7. Son of the Danish Crown Prince the later Frederik 8. and kin to most of the Royal houses of Europe.
Sweden had to accept that as it had to accept the existence of Norwegian border fortifications and no veto on the watershed though a consultative clause was added to the treaty regarding shared watersheds.
The Sami was secured free passage of borders in the north of Scandinavia.

The Ore Railway from Kiruna/Malmberget in Sweden to Narvik, Norway was given special attention.
The British company running the railway naturally wanting to continue doing so but the recent war did muddy the waters.
British pressure had to be applied to reach agreement for the time being; the British company would still run the railway and Norway allow shipping ore off the port of Narvik.
The Swedes however were grumbling but didn't have any alternative.

Peace treaty signed the Great Powers observers left Scandinavia for other important duties.