Britain justified the rescue by arguing that Germany had already violated Norwegian neutrality by carrying prisoners through the country's waters and that Norway had failed to correct the breach. Germany's first violation mattered, though whether one wrong could legally or morally justify another remains open. Germany later cited the Altmark incident among its reasons for invading Norway. That use worked against the German narrative because it made an invasion appear to answer a British rescue with a much larger violation of Norwegian sovereignty. The episode was both an operational success and a contested legal precedent whose meaning changed in later wartime propaganda.
Notable Point · 45:27-46:33
Two wrongs, a rescue, and a German casus belli
Consider Britain's claim that Germany's first violation excused its own, and how the incident later served German invasion propaganda.