The 123rd Separate Guards Motor Rifle Brigade named after the Hero of the Soviet Union Kliment Voroshilov (Russian: 123-я отдельная гвардейская мотострелковая бригада имени Героя Советского Союза Климента Ворошилова, 123 oмсбр; MUN 73438) is a military unit of Russian Ground Forces.

"Zarya" ("Dawn") was originally formed in early 2014 as the 1st LNOB (Luhansk People's Liberation Battalion/Луганский Народно-освободительный батальон), part of the "Army of the South-East".

By mid-2015, the strength of the LPR 2nd Motor Rifle Brigade was thought to be around 4,500 personnel.

Ukrainian analysts considered the LPR 2nd Motor Rifle Brigade to be one of the most powerful units in the DPR and LPR, partly owing to the fact that it consistently had the highest staffing level compared to other units.

[4] On July 17, 2023, brigade commander Denis "Tashkent" Ivanov was killed by a Ukrainian FPV drone.