Unrestricted Submarine Warfare (1 янв 1917 г. – 1 янв 1918 г.)
Описание:
Cause:1. result of desperation
2. belief that ferocity of tactic might keep America out of the war if results were spectacular
Effect:
1. Sinking of the Lusitania
2. killed citizens
3. contributed to U.S. entry into WW1
Добавлено на ленту времени:
Дата:
1 янв 1917 г.
1 янв 1918 г.
~ 12 months