Finland–Sweden border border continues south into the northern Baltic Sea to a point where it meets the zone border of Estonia. The tripoint between the economic zones is defined by a treaty signed in 2001. The Finnish–Swedish border was created in 1809 by the Treaty of Fredrikshamn, as Sweden ceded Finland over to Russia. The course of the border was described in the fifth article of the treaty, without great detail. The borders were agreed to be the Sea of Åland, the Gulf of Bothnia, and the rivers Tornionjoki and Muonionjoki. Islands in the sea belonged to whichever country was the nearest
Finland–Russia border flag operation as the pretext to provoke the Winter War a few days later. According to a Russian media report, Finland closed its border crossing with Russia, a counterpart to the Russian border post, on 4 December 2015, an hour and a half before the day's scheduled closing time and thus prevented fifteen people of Mid-East origin from crossing the border. According to the same source, some Finnish border officials confirmed that Raja-Jooseppi had closed early that day while a spokesman for the same department said the checkpoint closed at its regular time of 2100 hours. Note the time zone