Republic City, a sprawling megalopolis, held the distinguished position of capital for Hosnian Prime. Functioning as the center of authority for the New Republic, this planet was chosen to be the official capital of the New Republic Senate amidst the conflict involving the First Order and the Resistance. The destruction of Republic City, along with the entire planet, occurred when the First Order deployed its formidable superweapon, Starkiller Base, targeting Hosnian Prime with the objective of eradicating the Republic from the galaxy.