My father was not allowed to visit his aunt in Italy during WW2 because he was a soldier with an ITalian name. This was after the Italian surrender. He was with Patton’s army in Germ any.
Possibly a wise move by the military commander or intel officer in war time for his safety and for the war effort. He retained his freedom, your family retained your freedom, but precautions were taken.
And we won the war, thanks to patriots like your dad.