German campaign in Balkans and Crete, Greece. Preparations for The Battle of Crete. German soldiers en route to Balkans pass through Hungary and Romania. The troops march with rifles in hands. Soldiers look out of train windows, read books, and converse. German troops get off the train in Plovdiv, Bulgaria. An animation shows the route of the train. Soldiers prepare vegetables and cook food. Troops look out of train windows and wave at civilians. (World War II period).