DEVGRU / SEAL Team Six (Task Force Blue).
documentedmilitary_installationJSOC & Special-Access Units
Navy tier-one SMU under JSOC (counterterrorism, direct action); named in the UAP crash-retrieval-security claim.
The Naval Special Warfare Development Group (DEVGRU), commonly 'SEAL Team Six' and JSOC's Task Force Blue, is the Navy's premier counterterrorism and direct-action SMU. It carried out the 2011 Abbottabad raid that killed Osama bin Laden alongside CIA, ISA, DIA, and NSA. Documented as a unit; the alleged role securing/transporting non-human craft is unverified.