Answer:
Unrestricted submarine warfare is a type of naval warfare in which submarines sink merchant ships and tankers without warning. I don't know what you want for an example, but Germany used it in World War 1.
Women in Sparta in general had greater power. within Sparta, free women had more freedom than enslaved women. Although Spartan women were excluded from military and political life, that belong strictly to men, they enjoyed status as mothers of Spartan warriors. Women took responsibility for running households and raising children. The interesting fact is that they could own land and some of the wealthiest Spartans were women.
I'm thinking they payed them to vote. I'm not sure though.
The answer is true, it is because there are only few parts in the world where the ask children or force children to be recruited as a combatant, and this is mainly in countries where war is usually common and death usually is expected-- forcing children to fight with them even if they are still young.