The JRNR-1 Jerna-class Intercontinental Ballistic Missile is the mainstay of the rocket arsenal of the Republic of Jerna. With design beginning in 2013, shortly after the formation of the People's Democratic Barony of Arrnea, now known as the Republic of Jerna, it represents one of the largest projects ever undertaken by the Jerna National Armaments Laboratory, in conjunction with the Jerna Rocketry Lab.