text: This man reached an agreement with the British diplomat George Russell Clerk that allowed his National Army to occupy most of his country’s territory.
full_question: This man reached an agreement with the British diplomat George Russell Clerk that allowed his National Army to occupy most of his country’s territory. While this man was negotiating with a rival at Klessheim, that rival ordered the occupation of this man’s country in Operation Margarethe. Otto Skorzeny kidnapped this man’s son using a carpet in 1944, after which the Germans took direct control of his country through the Arrow Cross Party. This former admiral came to power following the Treaty of Trianon. For 10 points, name this regent of Hungary between the two world wars.
first_sentence: This man reached an agreement with the British diplomat George Russell Clerk that allowed his National Army to occupy most of his country’s territory.