Cain was one of three Majors defending the front line in Lonsdale Force's sector at the southern end of the eastern perimeter.
Over the coming days of battle he became determined to destroy as much enemy armour as possible
and sited himself in a laundry's garden, much to the chagrin of the Dutch owner.
Over the coming days Cain was everywhere, dealing with armour and snipers and encouraging his men.
On the afternoon of Thursday 21st two tanks approached Cain's position. Guided by a colleague in a building above him, Cain waited in a trench until the first tank was close enough to engage.
The tank fired at the building, killing Cain's colleague and showering him with masonry but despite this, Cain kept his position.
Staff Sergeant Richard Long of the Glider Pilot Regiment
remembered that through the clouds of dust, Cain fired round after round from his PIAT until the tank was disabled,
but whilst engaging the second tank a round exploded in the PIAT with a bright flash and Cain was thrown backwards.
Cain recalled thinking he was blind and "shouting like a hooligan. I shouted to somebody to get onto the PIAT because there was another tank behind. I blubbered and yelled and used some very colourful language. They dragged me off to the aid post."
The British brought forward one of the Light Regiment's 75mm guns which blew the tank apart.
Witnesses believed that Cain was incapacitated, but within half an hour his sight returned.
He refused morphia
and against all advice returned to the front lines, decising that he "wasn't wounded enough to stay where [he] was".
On the following day his eardrums
burst from the constant firing and barrage, but he was content to stuff his ears with bandages and continue fighting.
On Sunday 24th, shortly after a truce to allow the evacuation of casualties
, Cain was alerted to the approach of a Tiger tank
. Together with a Royal Artillery
gunner he raced for a 6 pounder anti-tank gun
, manoeuvred it into position, fired and disabled the tank.
He wanted to continue using the gun, but the recoil mechanism was destroyed.
By 25 September, the area occupied by the Lonsdale Force saw heavy fighting against Self-propelled guns
, flame thrower tanks, and infantry. There were no PIATs available to the force by now; instead Cain armed himself with a two inch mortar
. Mortars are muzzle-loading indirect fire
weapons but Cain was forced to fire it on an almost horizontal plane due to the enemy's proximity. His citation states that his leadership ensured that the South Staffordshire gave no ground and drove the enemy off in complete disorder.
By the end of the Battle, Cain had been reportedly responsible for the destruction or disabling of six tanks, four of which were Tigers, as well as a number of self-propelled guns.
That night the Division began to withdraw in Operation Berlin
. Many men shaved and blackened their faces and Cain removed a week's growth of beard from his face, drying himself on his dirty, blood-soaked Denison smock
After successfully crossing the Rhine, this lead Brigadier 'Pip' Hicks
to comment "there's one officer, at least, who's shaved".
Cain made sure all of his men were over the river by dawn, before he himself crossed in an old boat.