Polish GROM: Thunder on the Battlefield

There’s a unique charm to Poland’s elite GROM unit that feels like it was ripped straight out of an action novel—one where the good guys get things done with precision, guts, and just enough chaos to keep it interesting. GROM (Grupa Reagowania Operacyjno-Manewrowego) is more than a special operations unit; it’s the mighty hammer of Polish resolve, smashing through the doors of tyranny since its inception in 1990.

GROM, meaning “thunder” in Polish, is a name that rolls off the tongue like a storm warning.

Modeled after NATO’s Tier 1 units—think Delta Force and the British SAS—this group stands toe-to-toe with the world’s best. And if their name doesn’t intimidate you, their operations sure as hell will.

The Silent Unseen Legacy

History isn’t just something you find in textbooks—it’s alive in GROM. Their lineage goes back to the Silent Unseen (Cichociemni), Polish paratroopers who parachuted into Nazi-occupied Poland during World War II to wreak havoc. Imagine James Bond with a vendetta. That’s the spirit GROM channels.

Fast forward to 1990: Brigadier General Sławomir Petelicki decided Poland needed its own version of thunder. His vision came to life with the backing of Operation Simoom, a hush-hush mission to extract six American intelligence officers from Iraq. It was a resounding success and the perfect résumé item for Poland’s future elite warriors.

Built for Chaos: The GROM Selection Process

The GROM selection process is notorious for its extreme difficulty and grueling nature. Taking place twice a year, in early spring or late fall, it unfolds in the rugged Bieszczady Mountains of Poland—a region British SAS operators have aptly nicknamed the “Polish jungle.” This challenging environment sets the tone for one of the toughest selection processes in the world.

To even be considered, candidates must meet strict initial requirements. They must be under 30 years old and hold Polish citizenship with a clean criminal record. Applicants can come from active or reserve military service, uniformed police forces, or even civilian backgrounds. A working knowledge of at least one foreign language is also mandatory, reflecting GROM’s emphasis on adaptability and global operations.