Heinz Guderian during Barbarossa

Generaloberst Heinz Guderian (Oberbefehlshaber Panzergruppe 2) holding a map during a field briefing with his generals in Russia, in front of a Panzerkampfwagen III medium tank, summer 1941. From left to right: Generalmajor Walther Nehring (Kommandeur 18. Panzer-Division), Oberst im Generalstab Rudolf Bamler (Chef des Generalstabes XXXXVII. Armeekorps), General der Panzertruppe Joachim Lemelsen (Kommandierender General XXXXVII. Armeekorps), Generalleutnant Hans-Jürgen von Arnim (Kommandeur 17. Panzer-Division), and Generaloberst Guderian. Panzergruppe 2 was formed in November 1940 from Panzergruppe Guderian (in October 1941 it was renamed the 2. Panzerarmee). It played a significant role in the early stages of the German invasion of the Soviet Union during Operation Barbarossa in 1941, when it was a constituent part of Heeresgruppe Mitte. Guderian troops formed the Army Group's southern pincer while Generaloberst Hermann Hoth's Panzergruppe 3 formed the northern pincer destroying several Soviet armies during the opening phase of Barbarossa. During the battles of Bialystok and Minsk, substantial numbers of prisoners and weapons were captured by Guderian's Gruppe. One of its subordinate was XXXXVII. Armeekorps, who controls 17. and 18. Panzer-Division.The photo was taken by Kriegsberichter Heinz Eckert (Propaganda-Kompanie 670).

Source :
https://en.wikipedia.org/wiki/2nd_Panzer_Army
http://forum-console.worldoftanks.com/index.php?/topic/55379-wwii-in-color/