Historical Incidents & Events

Invasion of Washington (1952)

1952

A series of radar and visual UFO sightings over Washington, D.C. - including over the White House and Capitol - in July 1952, the most publicized UFO wave in U.S. history at the time. The Air Force attributed the sightings to temperature inversions; a 74-year-old MIT Lincoln Laboratory recording tied to the event was flagged in Rep. Eric Burlison's 2026 records request.

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Connections (4)

confirmedGen. John A. Samford

held the Pentagon press conference addressing it

confirmedMIT Lincoln Laboratory

a 74-year-old recording tied to it was flagged in Burlison's 2026 request

confirmedProject Blue Book

investigated it and attributed it to temperature inversions

Source: USAF Project Blue Book records; Ruppelt, Report on Unidentified Flying Objects (1956)

confirmedCurtis LeMay

occurred during his era as a senior Air Force commander

Part of The Red Thread Files — an independent, evidence-first investigation into the UAP, USO, and consciousness question. Confidence labels (confirmed / reported / disputed) are an automated approximation based on the wording and directness of each source, not a verdict. Corrections: [email protected].