During the first few weeks of Operation Barbarossa, Hitler's invasion of the Soviet Union in 1941, Heinz Guderian's Second Panzer Group played a leading role, cutting through the defences on the border, then taking part in the massive encirclement battles near Minsk, Smolensk, and Kiev. The extraordinary speed of the advance reflects the experience of the Wehrmacht as a whole during the first phase of the war on the Eastern Front. That is why David Higgins's graphic narrative, which describes how Guderian's forces achieved enormous success before they were forced to halt, is such compelling reading. It is a fascinating story, vividly told. Drawing on a wide range of official German and Soviet records, he reconstructs the entire course of Second Panzer Group's advance, covering each stage in unprecedented detail. His narrative offers a German perspective and an inside view of what the opposing commanders knew during each operation and shows how important logistics became as the German supply lines stretched deep into the Soviet Union. It also explains how Soviet resistance and reinforcements, declining strength and the onset of the Russian winter combined to bring Guderian to a stop at Tula where he was relieved of his command. The high hopes with which the German army had launched the campaign were dashed only a few months later before Moscow. This in-depth study the of operations of Second Panzer Group gives the reader a telling insight into what went wrong.