1952-09-131950sNorth Sea / Skagerrak (NATO exercise area, Denmark/UK)International

Operation Mainbrace UFO Sightings

MILITARYMASSRADAR
CREDIBILITY
8/10
WITNESSES
CLASSIFIED
SHAPE
disc
COORDINATES
56.0000, 9.0000

INCIDENT REPORT

natooperation-mainbracenorth-seadenmarkunited-kingdomraf-topcliffeuss-rooseveltnavy-witnesspilot-witnessradar-witnessmass-witnessproject-blue-book1952cold-war