2. Milunka Savic
Milunka was a real-life version of Disney’s Mulan. When her brother was called up to fight in World War I, she chopped off her hair, put on his clothes and signed up to fight for Serbia. It was only when she had been injured in the field that doctors realized she was a woman, after having been deployed ten times. She was offered a position as a nurse by her commanding officer, but refused; he finally relented, and allowed her to re-join the fighting.