The 22nd Army Corps was formed on 1 December 2016, after the
annexation of the Crimea by Russia. The corps includes units of the
coastal troops of the
Black Sea Fleet, and is ultimately part of the
Southern Military District. The
126th Coastal Defence Brigade had been activated from a previous Ukrainian formation in December 2014 and joined the corps. In December 2018, the corps was presented with colours after distinguishing itself on combat missions. From February 2022 Lyamin was one of the commanders of the
invasion of Ukraine from Crimea; he was declared a war criminal by Ukraine. General Major Arkady Marzoev was reported as taking over command of the corps in November 2021, and was promoted to lieutenant general on 7 December 2022. Ammunition depots of the 22nd Army Corps were struck on 14 May 2022 in the
2022 Chornobaivka attacks during the
Russian invasion of Ukraine. In 2023, the unit took part in the
Ukrainian counteroffensive, during which it was merged with the newly created
40th Army Corps and reformed into the
18th Combined Arms Army. ==Formations and units==