“He was present at the Battle of Orel, the second great Russian victory of the war (in August 1943).”
I’ve never heard of this battle. A google search doesn’t reveal much, is that how the Russians refer to the Battle of Kursk ? Or just part of the larger Kursk campaign ?
During the battle around Kursk, one key objective of the axis was to reduce a salient and straighten out their lines, so reducing the war front - easier to supply, man and move around.
The initial axis assault caused a bulge in the lines at Orel, and after huge losses during the main Kursk engagements, this area was intended to be a defensive position for the axis.
The problem for the axis was compounded by their lack of preparations, especially the provision for withdrawal in the event of a failed assault - they had no proper retreat or fallback position.
As a result the axis forces were unable to hold the Orel area, the Orel battles is really part of a rolling continuation of defeat of the axis which began in Stalingrad, and culminated in Operation Bagration - the battle of Kursk was part of this and conitnued through Orel and onward - ultimately to Berlin itself.