Scandinavia (Denmark, Norway, Sweden) has never been occupied in its entirety by a single foreign power. However, individual countries and territories have experienced occupation.
| Country | Occupier | Period | Context |
|---|---|---|---|
| Denmark | Germany | Apr 9, 1940 – May 5, 1945 | Operation Weserübung; "model protectorate" until 1943; then direct rule. |
| Norway | Germany | Apr 9, 1940 – May 8, 1945 | Weserübung; fierce resistance; Quisling puppet govt; heavy fortification. |
| Sweden | — | Never occupied | Armed neutrality; conceded transit (German troops to Norway/Finnish border), iron ore exports. |
| Finland (Nordic, not Scandinavia) | USSR / Germany | Winter War (1939–40), Continuation War (1941–44), Lapland War (1944–45) | Co-belligerent with Germany vs USSR; never fully occupied. |
| Iceland (Nordic) | UK / US | May 1940 – 1941 (UK); 1941– (US) | "Occupation" by Allies to preempt Germany; invited by Iceland (1941). |
Conclusion: Denmark and Norway were occupied (WWII); Sweden was not. Scandinavia as a region never fell.