Second Battle of Villers-Bretonneux
The Second Battle of Villers-Bretonneux (also Actions of Villers-Bretonneux, after the First Battles of the Somme, 1918) took place from 24 to 27 April 1918, during the German spring offensive to the east of Amiens. It is notable for being the first occasion on which tanks fought against each other; it was the biggest and most successful tank action of the German army in the First World War.