 The 22nd SS Police Regiment helped to crush the Warsaw Ghetto Uprising in April–May.Together with the 25th SS Police Regiment and other security forces, the regiment participated in Operation Harvest Festival ("Aktion Erntefest") on 3–4 November, the massacre of 42,000 Jews imprisoned in the Majdanek extermination camp and several of its sub-camps.In July 1944, the regiment was transferred to Belarus and was destroyed there.