Died in an accident.
Awarded for the outstanding leadership of his Abteilung during the first days of Operation Barbarossa. On 22.06.1941 Niemack, while commanding the divisional Vorausabteilung, took a detour off the main road, cut through Serijai and by this was able to reach the Niemen river at Krikstonjai.
On 27.06.1941 he then thrusted towards the Niemen at Orla. During this action he made a bold decision… His Reiterschwadron was to advance via Szczara, through Korole and into the area NE of Piaski. The rest of the battalion was to advance via Korole. Through this move the Hill 132 (2 km south of Korole) was taken as was the area assigned to the Reiterschwadron at Szczara. This helped to seal off the escape route of those Soviet soldiers trapped in the Bialystok-Grodno pocket.
The following announcement from the Führerhauptquartier, dated 06.06.1944, describes how Niemack received the Swords to his Knight’s Cross…
“On the 4th of June the Führer bestowed the Swords to Oberst Horst Niemack, commander of a Panzer-Füsilier-Regiment, as the 69th soldier of the German Wehrmacht to be so honoured.
At the beginning of the campaign in the Soviet Union the former Rittmeister, along with his Aufklärungs-Abteilung, played a major role in the swift seizure of a crossing over the Niemen.
On the 2nd of May 1944 the enemy commenced a decisive attack east of the Sereth. The Panzer-Füsilier-Regiment “Großdeutschland”, under its commander Oberst Niemack, held the enemy storm at bay. In this time a group of 34 enemy tanks suddenly appeared at the command post of Oberst Niemack and from here threatened an important crossroads. Oberst Niemack only had his staff, the communications platoon and some drivers at his disposal. At the head of this small band he threw himself against the enemy. In close combat 8 enemy tanks were destroyed. The regimental commander was the soul of the resistance here and personally dispatched the Soviet command tank and with it the leader of the whole enemy group. By this the enemy attack in this sector was repelled.”