Underwater Demolition Command

Carrying on the tradition of the Hellenic Navy in naval special operations, the unit was established in 1957 with help from the United States Navy's Underwater Demolition Team, when two Greek officers were sent to Little Creek in Virginia to evaluate a UDT operational[1] [2]capability for the Hellenic Navy.

In 1997, during the violent unrest that erupted in neighboring Albania, the OYK were responsible for taking control of the international airport of Tirana and the evacuation of 240 foreign dignitaries from Albania (Operation Kosmas).[3]

UDT during fast-roping exercise Phoenix Express.(2009)

The selection and training course lasts roughly seven months and is divided into three phases similar to that of the US Navy SEALs BUD/S course. The course has an extremely high failure rate similar to that of its US counterparts. The candidates will go on to airborne school and then continue to learn advanced naval special warfare techniques.[4]

The OYK is known to use various types of firearms to complete their missions with some guns being customized to be able to adapt to the marine environment of the OYK.[5]

• Glock 17 9x19mm (does have sub-aqua spring cups to help with the marine environment to allow the gun to shoot right when it pulled out in the water and has an extended threaded barrel that can attach a suppressor if needed)
• Glock 18 9x19mm (has been utilized in the past, thought the standard issue is the Glock 17)
• Heckler & Koch MP5SD 9x19mm (MP5 variant used is the MP5A3)
• M4 Carbine 5.56x45mm (is usually equipped with a Holographic sight and a fore-grip)
• M4A1 5.56×45mm (is equipped with Acog holographic and sometimes with a magnifier ×1, as well as fore-grips)
• FN Minimi 7.62x51mm
• Springfield Armory M21 Sniper Weapon System 7.62x51mm
• Benelli M3T 12 Gauge
• Barrett M82A1 .50 BMG
• Accuracy International AWM
• M203 Grenade Launcher

The OYK generated controversy at the Greek Independence Day parade of 2015, when it chanted a nationalistic refrain: «Και το όνειρο μας είναι / στην Πόλη εμείς να μπούμε / σημαία να υψώσουμε / τον ύμνο εμείς να πούμε», roughly translated as 'Our dream is to enter the City (Constantinople) to raise our flag and sing our anthem'. Opposition ministers from the PASOK party launched attacks on the defence Minister Panos Kammenos, accusing him of mishandling matters of vital foreign policy. Concerns were also expressed by the government (SYRIZA) MP Vassiliki Katrouvanou, who called the chants 'a clear offense to our republic', and highlighted the ongoing need to remove certain far-right elements from the Greek armed forces.[6]

In Late July/ early August of 2014, Greek Navy SEALs undertook an operation in which they were to evacuate Greek/ Cypriot and foreign citizens from Tripoli, Libya. The team entered the tripoli port to do some reconnaissance and to establish contact with local Libyan forces on the ground. The civilians were then evacuated, 89 being from either Greece or Cyprus, and then an additional 97 people from other countries (Including the United Kingdom, China, Russia, Albania and Belgium). In total 186 people were extracted and saved. The civilians were transported by Libyan port authority RHIBs (Due to weather) and then put on a Greek frigate to which they later sailed back to Pireas. [7] [8]

On the 30th April 2020, a boat had entered Greek Waters (Cyprus) unmanned and without making any contact with the Cypriot authorities. Immediately the Cyprus Joint Rescue Coordination Center called for the Underwater Demolitions Command to respond, and immediately, boats carrying the SEALs were sent to the area. Upon arrival, they had found 2 people who later told them that due to technical difficulties on the boat, it began acting erratically and had in fact at first thrown them off. Because of this, the 2 people were transported to Larnaka hospital and the boat was transported to land by the Underwater Demolitions Command. [9]

• Zeta Amphibious Raider Squadron (Z' MAK), the Hellenic Army elite amphibious reconnaissance and amphibious strike unit attached to the 13th Special Operations Command in the 1st Raider/Paratrooper Brigade (Greece).

• Underwater Demolition Command
• Hellenic Navy