(DVIDS via Storyful) PARRIS ISLAND, S.C. - Two sets of sisters graduated from the Marine Corps recruit training together over the weekend.The Department of Defense called the five new Marines "sisters by blood, now sisters-in-arms."Ashley Valentine, 19, decided to join the Marine Corps after promising her grandfather that she would carry on his legacy, just three days before he passed away.
After she signed up, her 22-year-old sister Amber decided to enlist as well.RELATED: Deputy returns from Afghanistan deployment, surprises son in emotional reunionMaria Placido Jaramillo, 21, and her sisters, 22-year-old identical twins Vanessa and Melissa, all made a pact to join the military together when they were young children.The sisters were born.