Born on Earth in 2517, Joshua was just six years old when he was taken by the UNSC to the agricultural UNSC base of Reach. Little did he know that he was going to be enlisted as a SPARTAN II candidate. Joshua possessed all the qualities required to become a SPARTAN. Joshua was known as a troublemaker throughout the training. Contrary to most of his fellow candidates, Joshua never despised Mendez and admired him very deeply. He used Mendez as an inspiration and role model.