Which labeled states countries or territories are part of arctic tundra?

The Arctic tundra primarily spans parts of countries such as Canada, Alaska (USA), Greenland (Denmark), Norway, Russia, and Finland. Key regions include the northern territories of Canada, the Alaskan North Slope, and Siberia in Russia. Additionally, some areas of Iceland and parts of Sweden also exhibit tundra characteristics. These regions are characterized by their cold climate, permafrost, and unique ecosystems.