Germany agreed that future attacks would only take place in accord with internationally agreed prize rules, which required an attacker to give a warning and allow the crews of vessels time to escape, and not to attack neutral vessels at all.
Alemaña accedeu a que os seus ataques nun futuro só terían lugar de acordo aos acordos internacionais, que requiría do atacante dar un aviso antes e permitirlle ás tripulacións dos barcos que o abandonasen a tempo, e non atacar a barcos totalmente neutrais.