As WWII escalated, Norway found itself under immediate threat from German military operations. On April 9, 1940, German troops invaded Norway, leading to a rapid breakdown of the Norwegian defense. By early June, fighting had come to a standstill, and the invasion was largely complete, prompting King Haakon VII and Crown Prince Olav to make the critical decision to leave their homeland. Their departure from Tromsø, a northern city providing a temporary haven, marked a turning point for Norway. The royal family and the government took a British warship to London, where they would continue to lead their country from exile. This move was intended to maintain Norwegian unity and morale among the populace, as well as to coordinate efforts with the Allies to reclaim Norway from Nazi control.

In London, King Haakon VII became a symbol of Norwegian resistance against the German occupation. The exile government worked to gather support from the international community and maintain Norway's recognition as a sovereign state. Over the next five years, while in exile, they engaged in diplomatic efforts and established connections with Allied forces, all aimed at preparing for a future liberation of Norway. Their dedication served to inspire Norwegians both at home and abroad, as they navigated the challenges of occupation. Eventually, in 1945, following the surrender of Germany, the royal family and government returned to Norway as heroes, ready to restore the nation in the aftermath of war.