Four armies were selected for the operation. First was the Sixth Panzer Army, under SS General Sepp Dietrich—newly created on 26 October 1944, it used the most senior and the most experienced "Waffen-SS": the 1st SS Panzer Division "Leibstandarte Adolf Hitler" as well as the 12th SS Panzer Division "Hitlerjugend". The 6th Panzer Army was the northernmost attack force. It was ordered to capture Antwerp. The Fifth Panzer Army under General Hasso von Manteuffel was ordered to capture Brussels. The Seventh Army, under General Erich Brandenberger, was ordered to the southernmost attack. This Army was made up of only four infantry divisions, with no armoured groups. As a result, they made little progress throughout the battle. Also participating in a secondary role was the Fifteenth Army, under General Gustav-Adolf von Zangen. It was located on the far north of the Ardennes battlefield. It was ordered to hold U.S. forces in place. It could also attack if conditions were right.