Photographs of Fedor von Bock by Walter Frentz

Generalfeldmarschall Fedor von Bock (Oberbefehlshaber Heeresgruppe Süd) in a picture taken in 1942 by Walter Frentz, during a meeting with Hitler. Von Bock served as commander in chief of Heeresgruppe Süd from 20 January 1942, succeeding Generalfeldmarschall Walter von Reichenau who had died of a stroke, and immediately faced the challenge of stabilizing the southern sector of the Eastern Front after the Red Army's winter counteroffensive had pushed German forces back from their advanced positions. A highly experienced Prussian staff officer and field commander known for his methodical approach and loyalty to traditional military principles, Bock took charge of a massive formation encompassing the 2. Armee under Maximilian von Weichs, the 6. Armee under Friedrich Paulus, the 17. Armee, the 1. Panzerarmee, and various allied contingents from Romania, Hungary, and Italy. In May 1942 he masterminded the successful German response to the Soviet Kharkov offensive, launching a devastating counterstroke that encircled and largely destroyed the Soviet South-Western Front, inflicting around 280,000 casualties and capturing enormous quantities of tanks, artillery, and supplies, thereby restoring the initiative to the Wehrmacht in the south and severely weakening Soviet armored capabilities ahead of the summer campaign. On 28 June 1942 Bock directed the launch of Operation Blue, the major German summer offensive, with his armies striking from the Kharkov and Kursk areas, rapidly advancing toward Voronezh and the Don River through coordinated panzer thrusts by Hoth's 4. Panzerarmee and Paulus's 6. Armee, achieving deep penetrations that split Soviet defenses and opened pathways toward the Volga and Caucasus. Despite these early gains Bock clashed repeatedly with Adolf Hitler over operational priorities, urging the destruction of remaining Soviet forces around Voronezh to secure flanks before committing to further eastward drives, warnings that highlighted his cautious professionalism against Hitler's more ambitious and risk-tolerant directives. These disagreements culminated on 7 July when Hitler split Heeresgruppe Süd into separate Army Groups A and B, and on 17 July relieved Bock of command, placing him in the Führerreserve for the remainder of the war and effectively ending his active military career despite the significant momentum his leadership had restored to German operations in the east that year.

Source :
https://www.tracesofwar.com/persons/193/Bock-von-Moritz-Albrecht-Friedrich-Franz-Fedor.htm
https://www.walter-frentz-collection.de/fotoarchiv/personenarchiv-a-z/personen-a-b/