On Wednesday, both Norway and Denmark observed the 85th anniversary of the German invasion that marked the beginning of Nazi occupation during World War II. Events across the two countries honored acts of resistance and highlighted the significance of national memory in the face of historical trauma.
Blücher sinking remembered as pivotal moment in Norway’s defense
In Norway, a solemn commemoration was held at Oscarsborg festning to mark the sinking of the German warship Blücher on April 9, 1940. The incident occurred in the Oslofjord, just outside the town of Drøbak, and was a key event in delaying the German advance into the Norwegian capital.
Between 05:00 and 05:30 on Wednesday morning, a symbolic re-enactment involving gunfire and a vessel moving inward through the fjord was staged by the Oscarsborg festningsmuseum. Later at noon, a commemorative ceremony took place on the island fortress, followed by guided tours. The entire event was open to the public and free of charge.
The sinking of the Blücher is widely regarded as a critical turning point in Norway’s early resistance. By halting the German invasion fleet, it allowed the royal family, government officials, and the national gold reserves to be evacuated from Oslo and moved to safety. This act of defense, though isolated, carried immense symbolic and strategic importance.

Danish Royal Family lowers flags to half-mast in tribute
Meanwhile in Denmark, the Royal Family marked the same date—April 9—as the beginning of five years of German occupation. Flags were flown at half-mast at Amalienborg Palace and other royal residences to honor the somber occasion.
“At 12 o’clock, the flag is raised again as a quiet symbol that the occupation did not last,” wrote the Danish Royal household in an Instagram post, noting that the occupation ended after five years and one month.
While Denmark’s initial resistance in 1940 was limited compared to Norway’s, the remembrance underscores how the occupation shaped national identity, democracy, and post-war reconstruction in both countries.

Shared history, separate responses
April 9 remains a powerful day in the collective memory of both countries. Norway‘s defensive stand at Oscarsborg and Denmark‘s subsequent internal resistance movement both illustrate different responses to the same crisis. These commemorations serve not only as historical markers but also as reflections on sovereignty, courage, and the price of freedom.
The 85th anniversary offers a moment to pause and remember the sacrifices made and to reflect on the enduring values of independence and peace in the Nordic region. At a time when Europe once again faces geopolitical uncertainty, marked by war in Ukraine and growing tensions along its eastern borders with Russia, the lessons of 1940 carry renewed urgency. The commemorations remind us that vigilance, unity, and a commitment to democratic values remain essential to preserving peace in the present and future.