The Nazis had anticipated Horthy's move. On 15 October, after Horthy announced the armistice in a nationwide radio address, Hitler initiated Operation Panzerfaust, sending commando Otto Skorzeny to Budapest with instructions to remove Horthy from power. Horthy's son Miklós Horthy, Jr., was meeting with Soviet representatives to finalize the surrender when Skorzeny and his troops forced their way into the meeting and kidnapped the younger Horthy at gunpoint. Trussed up in a carpet, Miklós Jr. was immediately driven to the airport and flown to Germany to serve as a hostage. Skorzeny then brazenly led a convoy of German troops and four Tiger II tanks to the Vienna Gates of Castle Hill, where the Hungarians had been ordered not to resist. Though one unit had not received the order, the Germans quickly captured Castle Hill with minimal bloodshed; seven soldiers were killed and twenty-six wounded.