Flags and arms of cantons of Switzerland there is overlap; Unterwalden and Solothurn share the same colours, as do Basel and Appenzell, and with the accession of the modern cantons, Valais and Basel-City, and St. Gallen and Thurgau. Of the 26 cantons since 1999 (22 cantons in 1848, accession of Jura in 1979, three half-cantons designated "canton" in 1999): Distinctively, Swiss cantons use square flags. Historically, the number of cantons was: Nidwalden and Obwalden form traditional subdivisions of Unterwalden. Basel-Stadt and Basel-Landschaft, as well as Appenzell Inner- and Ausserrhoden, are half cantons, resulting from the division of Basel and Appenzell, respectively. The Swiss Federal Constitution of 1999
Cantons of Switzerland in the formation of Switzerland as a federal state in 1848. The cantons retained far-reaching sovereignty, but were no longer allowed to maintain individual standing armies or international relations. As the revolutions of 1848 in Western Europe had failed elsewhere, Switzerland during the later 19th century (and with the exception of the French Third Republic, until the end of World War I) found itself as an isolated democratic republic, surrounded by the restored monarchies of France, Italy, Austria-Hungary and Germany. The Swiss Federal Constitution declares the cantons to be sovereign to the extent that their sovereignty is not limited by