Günther Adolf Ferdinand (von) Kluge (* October 30th 1882 in Posen; also known as Hans Günther von Kluge) is a Generaloberst (colonel general) of the Wehrmacht. At the cadet school, he was nicknamed by his Friends "der kluge Hans" (clever Hans) after a then-famous alleged calculating horse. In the Hierarchy, he is under Gerd von Rundstedt/Walther von Brauchitsch/Adolf Nazi.
His 4th Army fought in Poland as part of Heeresgruppe Nord under Fedor von Bock. After this campaign, he's considered one of the best commanders. Before the planned War in the west, which started on May 10th 1940, the 4th Army became part of Army Group A under von Rundstedt. After the quick advance through Belgium, on May 24th (after a conference with von Rundstedt, who had been pressured by Wilhelm Keitel on behalf of the "Führer") he issued a halting order for the Troops (which had 18 km left to Dunkirk). (Such Halting orders had already been given during "Fall Gelb", e.g. on May 17th. They were supposed to give the head of the Panzer troops a break, to consolidate with the other troops.) After that, his superior Walther von Brauchitsch gave the opposite order. But then, von Rundstedt met - for which he had 60 minutes - with the "Führer" in person, when the latter was visiting the Front... at the end, the Chaos ended very positively for the Wehrmacht, what with the battle of Dunkirk.
He and Heinz Guderian detest each other personally.
In 1907, he married Mathilde von Briesen. They have three Kids: Günther, Ester und Marie Louise. His Brother Wolfgang von Kluge is a Wehrmacht Officer too, in 1940 in the Rank of a colonel.