Because there had been many improvements made to succeed. Weaponry, generals, and tactics had changed. There was also more of a drive. The angrier the person,the more determined they are.
The southern region (the Balkans) was influenced by the Byzantine and Ottoman empires. The north was influenced by Western Europe, and the east was most influenced by Russia.
The sinking of the U-boat by the Germans, the U-boat had about 100 Americans in it and they were killed.
I think it might be "C.Textile Workers"
im not sure but i hope it helped