IV and V tanks, they took part in the Battle of Amiens (8 August 1918) which was described by the German supreme commander, General Ludendorff, as "the Black Day of the German Army". The Whippets broke through into the German rear areas causing the loss of the artillery in an entire front sector, a devastating blow from which the Germans were unable to recover. During this battle, one Whippet – Musical Box – advanced so far it was cut off behind German lines. For nine hours it roamed at will, destroying an artillery battery, an observation balloon, the camp of an infantry battalion and a transport column of the German 225th Division, inflicting many casualties. At one point, cans of petrol being carried on Musical Box'''s roof were ruptured by small-arms fire and fuel leaked into the cabin; the crew had to don gas masks to survive the fumes. Eventually, a German shell disabled it and as the crew abandoned the tank, one of them was shot and killed and the other two were taken prisoner. “Musical Box” was captured by the Germans, however it was retaken by the British later on in the war. The tank survived the war, and although most likely scrapped post war, 2 other Whippet tanks that saw extensive action are in Museums; A347 Firefly and A259 Caesar II, The Germans captured fewer than fifteen Whippets, two of which were in running condition. They were kept exclusively for tests and training purpose during the war, but one of them saw action afterwards with the Freikorps in the German Revolution of 1918–1919. The Germans gave them the designation Beutepanzer A. After the war, Whippets were sent to Ireland during the Anglo-Irish War as part of the British forces there, serving with 17th Battalion, Royal Tank Corps. Seventeen were sent with the Expedition Forces in support of the Whites against Soviet Russia. The Red Army captured twelve, using them until the 1930s and fitted at least one vehicle with a French 37 mm Puteaux gun. The Soviets, incorrectly assuming that the name of the engine was "Taylor" instead of "Tylor" (a mistake many sources still make) called the tank the Tyeilor. A few (perhaps six) were exported to Japan, where they remained in service until around 1930. Whippets were used by the Imperial Japanese Army in Manchukuo and during World War II. Surviving vehicles Five Whippets survive: