Here it fought during the four-day Siege of Calais, part of the Battle of France. All of its tanks were lost, and many personnel were killed or taken prisoner, but some escaped to Dunkirk or were evacuated from Calais before the port fell.
During the four-day siege of Calais, which was a component of the broader French campaign, this unit suffered significant losses. Its entire tank fleet was eliminated, and many personnel were either slain or taken into custody; however, some individuals escaped to Dunkirk or were evacuated from Calais before the port fell.