Mulan

The Huns, led by the ruthless Shan Yu, invade China, breaching the Great Wall via grappling hooks. This prompts a panicked soldier to light the sentry fires. As a result of the invasion, each family is given a conscription notice. On the same day Fa Mulan's meeting with the local matchmaker goes awry, her father, Fa Zhou, is ordered to serve in the army. Due to his age and previous war injuries, however, it is unlikely he will survive. Against her family's wishes, Mulan secretly disguises herself as a man, then takes her father's conscription notice, armor, and weapons so that he will not have to go. She rides away on her horse, Khan, to join the army, knowing that if she gets caught she will be killed, as women are strictly forbidden from joining on pain of death.