The Chiral Soliton Lattice (CSL) is a state with a periodic array of topological solitons that spontaneously breaks parity and translational symmetries. Such a state is known to appear in chiral magnets. We show, based on a systematic low-energy effective theory, that the ground state of QCD becomes the CSL at finite chemical potential in a magnetic field or rotation due to the presence of the topological terms related to the chiral anomaly. We also discuss unusual electromagnetic properties of the CSL in QCD. In particular, we show the emergence of photons with the nonrelativistic dispersion relation that can be understood as a type-B Nambu-Goldstone mode of generalized global symmetries.