Borders of Canada explained

The borders of Canada include:

To the south and west: An international boundary with the United States, forming the longest shared border in the world, 8893km (5,526miles);^[1] (Informally referred as the 49th parallel north which makes up the boundary at parts.^[2]
To the east: A maritime boundary with the Kingdom of Denmark, at the self-governing country of Greenland; and a smaller land-based border on divided Hans Island.
To the southeast: A short maritime border with France, at the overseas islands of Saint Pierre and Miquelon.
To the north: The far northern situated areas of the Queen Elizabeth Islands extend well into the Arctic^[3] and form portions of the basis of historical Canadian sovereignty claims into the Arctic region.^[4] More recent Canadian claims (as of 2022) reportedly extend to a portion of the Russian Federation.^[5]

References

Web site: Field Listing: Land Boundaries . 31 May 2007 . The World Factbook . . dead . https://web.archive.org/web/20070613004344/https://www.cia.gov/library/publications/the-world-factbook/fields/2096.html . 2007-06-13 .
Web site: 1846 U.S.-Canadian border established . Staff writer . June 15, 1846 . History.com . en-US . May 14, 2024 .)
Web site: Canada and the Circumpolar Regions . Staff writer . May 6, 2024 . anada's partnerships and priorities by world region . www.international.gc.ca . Foreign Affairs, Trade and Development Canada . en-Ca . May 14, 2024 .
Web site: Arctic and Northern Policy Framework: Safety, security, and defence chapter . Staff writer . September 10, 2019 . www.rcaanc-cirnac.gc.ca . Crown-Indigenous Relations and Northern Affairs Canada . en-Ca . May 14, 2024 .
Web site: Canada extends its Arctic Ocean seabed claim all the way to Russian waters . Breum . Martin . December 21, 2022 . www.artictoday.com . The Arctic Business Journal . May 14, 2024 .