General Georg von der Marwitz: German Second Army at Cambrai & Amiens
General der Kavallerie Georg von der Marwitz commanded the German Second Army during the Battle of Cambrai. His forces absorbed the British tank-led breakthrough of 20 November 1917 and then launched the major counter-attack of 30 November that recovered much of the lost ground.
From cavalry to army command
Marwitz was a career German cavalry officer who held senior commands on both Eastern and Western Fronts. By late 1917 he commanded the Second Army in the Cambrai sector.
His army occupied positions built around the Hindenburg Line, including deep trenches, wire, strongpoints and prepared artillery zones. British planners selected the area partly because the ground appeared suitable for tanks.
20 November: shock
The British Third Army attack began without the long preliminary bombardment German defenders had learned to interpret as warning. Hundreds of tanks, predicted artillery fire and closely following infantry created local surprise.
Several German formations were pushed back rapidly and the British opened a deep salient.
German adaptation
The defensive problem changed immediately. German commanders had to stop the penetration, bring reserves forward, restore artillery positions and understand a new massed armoured threat.
The point I take from the German side is that surprise does not end when the first reports arrive. Headquarters still has to build an accurate picture from disrupted communications, identify where the enemy's main effort really is and decide which routes and reserves can still be used. That is a command-and-information problem before it becomes a counter-attack plan.
30 November counter-attack
The German Second Army launched a large counter-offensive on 30 November. The attack used intense artillery concentrations and infantry tactics associated with the developing German assault doctrine: bypassing strongpoints where possible and pressing into weaker rear areas.
The counter-attack achieved deep gains in parts of the southern sector and forced the British to abandon much of the ground won during the opening phase.
What Cambrai demonstrated
For Marwitz's army, the battle demonstrated both vulnerability and adaptability. Static defences could be ruptured by surprise combined-arms methods, but an attacker that lacked fresh reserves and sustainment could itself become vulnerable once momentum slowed.
Cambrai did not return the Western Front to cavalry-style manoeuvre. It showed, however, that both sides were learning how to produce and respond to rapid local changes in a heavily fortified battlespace.
Related: Cambrai field guide · Hugh Elles biography
