4 maio 1916 ano - Sussex Pledge

Descrição:

- On May 4, 1916 German government agreed to give a warning before sinking ships.
- This was to provide safety to the passengers on the ships.
- This agreement was called the Sussex Pledge
- GERMANY STAYED TRUE TO THE AGREEMENT UNTIL FEBRUARY 1917, WHEN THEY STARTED USING SUBMARINE WARFARE WITHOUT WARNINGS.

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