Mobile Suit Gundam Thunderbolt: December Sky – During the One Year War of U.C. 0079, the Earth Federation and Principality of Zeon engage in a fierce battle at the “Thunderbolt Sector”, a shoal zone in the former Colony Side 4 “Moore”. After successfully infiltrating Zeon’s sniper field, ace Federation pilot and jazz enthusiast Io Fleming is given control of the latest Gundam prototype. The series takes place concurrently with Mobile Suit Gundam, during the One Year War. In U.C. 0079, the Earth Federation’s Moore Brotherhood and the Principality of Zeon’s Living Dead Division engage in a fierce battle in the “Thunderbolt Sector” (サンダーボルト宙域 Sandāboruto Chū-iki), a shoal zone littered with debris from destroyed space colonies, named for the frequent electrical discharges. Since the outbreak of the war, Zeon forces have secured the Thunderbolt Sector, as it is a vital supply route to the A Baoa Qu asteroid fortress. The story focuses on Federation soldier Io Fleming as he battles Zeon’s best sniper, Daryl Lorenz.