Waterway? My anwer is.. The main reason Bosporus is an important waterway is because the Blacksea and the sea of Marmara are connected , and that separates Europe from Asia.
During the reparations period, Germany received between 27 and 38 million marks in which the United States, Great Britain, the Netherlands and Switzerland served. In addition, a loan of 800 million marks was to be raised (where more than 50 percent was from the United States, 25 percent in Britain and the balance of other European nations) to support the German currency and help in the payment of The repairs.
I believe it is building igloos