The Polish Special Forces unit GROM (Grupa Reagowania Operacyjno-Manewrowego), which translates to Group for Operational Maneuvering Response, is Poland’s premier special operations unit. 

GROM, which also means “thunder” in Polish, traces its lineage to the exiled Polish paratroopers of World War II known as the Silent Unseen (Cichociemni Spadochroniarze Armii Krajowej). The Silent Unseen was a special operations unit of 315 men — and one woman — trained in Great Britain before inserting into occupied Poland to oppose the Germans. 


The Polish Tier 1 Unit

GROM is modeled after the Tier 1 units of NATO, such as the U.S. Army’s 1st SFOD-D (Delta Force), the US Navy’s SEAL Team Six (DEVGRU), and the British Army’s SAS.