Has there ever been a border as long as Canada and the US with entirely peaceful relations?

Switzerland has been at peace with all of its neighbours since 1815, when it was a party to a war in which France was on the other side.

During the 60-some odd years between Russia’s annexation of Kazakhstan in the 1860’s and Mongolia’s independence from China in 1921, the two countries would have shared a nearly 14,000 kilometer long border (assuming the border was approximately the present-day China/Russia + Mongolia/Russia + China/Kazakhstan). It wasn’t exactly friendly, as Russia joined the other western powers in taking all manners of economic and territorial concessions from China, but there at least wasn’t any open fighting across the border during that period.

Well, there were the rebellions of 1837-1839, which while unsuccessful, were at least in part responsible for the eventual granting of responsible government to Canada in the 1840s. So the process of Canada becoming independent did cause some noise.

Also, while Canada might not have been existed as an independent country before… choose your date, Canadians as a people definitely did.

As for the Canada-US border, while it may not have been the theatre of a war since 1814 (or 1859, if you want), tensions remained high for some time. The confederation of 1867 happened at least in part in order to consolidate the British colonies in North America into a single country in prevision of a war with the US. As late as 1867, US-based Irish separatist fighters were conducting raids in Southern Ontario with the tacit approval of the United States. I cannot say for sure when the Canada-US border started being entirely “peaceful”, but it’s almost certainly later than 1870.

You have no idea.

I believe that during the 1840s when the canton of Neuchâtel declared itself a republic, the King of Prussia (who was also Prince of Neuchâtel) made some attempts to reestablish his right, but at the end it was resolved diplomatically. Neuchâtel Crisis.

There was also a civil war in Switzerland in the mid-1840, but of course this didn’t involve their neighbours. Sonderbund War.

Oh, oops… I was looking at Russia/Kazakhstan instead of China/Kazakhstan… so it only would have been about 9,000 km’s.

No. The Winter Warof 1939-1940 and the Continuation War of 1941-1944

Not much longer, though (1808-1814)

If by “same” you mean, “Was also fighting with its neighbor due to Napoleonic interference during the early 19th century,” then, yes.

Belgium did not exist as a nation until its 1830 Revolutionagainst the Netherlands.

Switzerland was conquered by Revolutionary France and became the client-state of the Helvetic Republic. In 1803, Napoleon imposed the Swiss Confederation and used Swiss territory and troops in his wars with the rest of Europe (Austria in particular). The post-Napoleonic Congress of Vienna re-established Swiss independence, but not Swiss peace. Further tensions between cantons and with surrounding powers eventually resulted in the 1847 Sonderbundskrieg. Also, remember that Germany and Italy were not even nations until 1871.

So, all those national boarders saw fighting that was nearly contemporaneous to, or later than, the last actual fighting on the US-Canadian border (1812). Given that most of these conflicts were related to Napoleon’s ambitions, as indeed the US-UK conflict was, this is not very surprising.

[quote=“paperbackwriter, post:25, topic:590307”]

No. The Winter Warof 1939-1940 and the Continuation War of 1941-1944
Those wars were between Finland and the Soviet Union. Sweden was not involved. Hence the Swedish-Russian and Swedish-Finnish borders remained peaceful, which was my point.

[itty bitty hijack, but let the main thread continue]That’s a once a year guvmnt job? Pretty cushy .[/itty bitty hijack]

The American is a private citizen who makes the journey on his own dime.

Sweden has had no border with Russia since we lost Finland, so that is really not an issue, although the Soviet Union dropped a couple of bombs over Stockholm in WWII. There was also some artillery fire across the Finnish-Swedish border but it was the retreating German troops that did that.