Back during the time of the great depression the gremans had various ways of torchuring the jews, and when they had to move them around they did not have sufficient tanspertation for them. They were either shoved into little box train cars if they were just being taken into the concentration camp fromt he ghettos. Or they were made to go on marches that would possibly be made to last up to a weak just to to sort of weed out the ones they could no longer use as workers.
The death marches were torcherous to the prisoners. No matter what the weather conditions were they had to keep moving and keep up with everyone else around them. If u slowed down or stopped, you were shot. If u treid to run you were shot. And in the duration of these marches the germans would would stop to rest and allow the jews a little rest time as well, but it was during these rest's in the winter that many people dies as well, they would sort of just fall asleep in the snow and never wake up. In some stories you can read about survivers who actually hid under corpses and waited for the gertmans and everyone else to leave.
The death marches were just one example of what the Jews in that time had to go through, march for days without food or water, and knowing in the back of ur mind that if you or anyone you care about that your with stop, you could both die. It sounds Terrifying and I cant even begin to imagine how that must have been for nay of those people that had to go through that.