Colonel Aviv Reshef Beside the ruin of a gas chamber in Auschwitz (the retreating Germans dynamited them to destroy the evidence of their crimes) I meet Aviv Reshef, a colonel in the Israeli parachute regiment.

His grandmother Lily Fisher arrived here with her family on one of the stinking, suffocating cattle trains. Lily was selected for slave labour - her mother, father, brothers and sisters were sent directly to the gas chamber. She watched them being herded through the camp and she never saw them again.

Lily thinks the shock and stress of returning to this place of suffering and loss would be more than she could bear. So before he set off from Israel Aviv called her to ask if she wanted to write a note or light a candle for that lost family for him to take back and leave in the place where they were murdered. After a little thought, she decided that she did not.

"I asked her if she wanted to write something because every one of her family were murdered over here," he explains. "She thought about it for a couple of minutes and she said, 'You are my note, you are my candle... that you're going back there to Auschwitz as an officer in the Israeli Defence Force (IDF), walking into this hell, this is the note this is the candle for me, that means that I won, they wanted to kill me, they wanted to kill my family, but my family still lives."