sentences:  On the night between the 5 and 6 April, Aaltonen led a unit of Reds that managed to break through the enemy siege and flee across the ice of lake Näsijärvi.After some clashes in the Tampere surroundings, Aaltonen and his men joined the refugee column of tens of thousands of Reds who were on their way to the east.In the end of April, their way was closed by the German troops in the village of Nastola near Lahti.