I was reading an autobiography from one of the Tuskeegee Airman, 1st Lt. H. Jefferson who was a POW in one of the Luftwaffe Stalags. He was interrogated by a German Army Oberleutnant who spoke absolutely idiomatically perfect US English. He told Jefferson that the reason for his perfect English was that he had been born a German citizen and had emigrated to the US when he was 10 years old. His parents had naturalized, and he subsequently became a US citizen by virtue of his parent’s naturalization.
He was visiting Germany as a 21 year old and was trapped there by Hitlers declaration of war on the US on Dec 11, 1941. He was interned for several months as an enemy alien, and was later drafted into the German Army as a Volksdeutch citizen. He fought on the Russian front, was wounded, recuperated and was reassigned to the Italian front in early 1944, where he fought against the US and British forces. Wounded again he was assigned to duty as a POW interrogator, where he met Lt. Jefferson.
After the war, while being detained as a POW, charges against him of treason were weighed by the US attorney. After careful study, it was determined that Germany DID have a legal claim on his allegiance, and that he was a legit German soldier, especially since the man had never taken an oath of loyalty to the US as an adult.
This may be an unusual case, but it serves to illustrate the complications of divided allegiances that the framers sought to avoid with the office of POTUS, and by creating the natural born citizen requirement and having NO other legal allegiances.
Very interesting thanks for sharing that story.