Portugal during World War II
Upon the start of World War II in 1939, the Portuguese Government announced on 1 September that the 600-year-old Anglo-Portuguese Alliance remained intact, but that since the British did not seek Portuguese assistance, Portugal was free to remain neutral in the war and would do so. In an aide-mémoire of 5 September 1939, the British Government confirmed the understanding. As Hitler's occupation swept across Europe, neutral Portugal became one of the Continent's last escape routes. Portugal managed to remain neutral throughout the war despite extraordinary pressures from both sides, notably over the strategically located Azores islands and over the wolfram (tungsten) trade.
Shout at the Devil (film)
In the film the German ship is named "Blücher"; there was a vessel of this name, but it did not serve in Africa. The film implies that Portugal became a co-belligerent with Britain against Germany when the First World War broke out in August 1914. In fact, Portugal remained neutral until 1916. Portugal's status as an ally seems to be confirmed in the film when the Portuguese supply O'Flynn and Oldsmith with a marked Portuguese plane with a Portuguese pilot to conduct surveillance in German territory. In reality, the Portuguese would not have allowed this as it would have violated their neutrality.