Black helicopter
a symbol of an alleged conspiratorial military takeover

The black helicopter is a symbol of an alleged conspiratorial military takeover of the United States in the American militia movement. Black helicopters have also been associated with UFOs, especially in the UK, men in black, and similar conspiracy theories.
Overview
Stories of black helicopters first appeared in the 1970s, and were linked to reports of cattle mutilation.
Jim Keith wrote two books on the subject: Black Helicopters Over America: Strikeforce for the New World Order (1995), and Black Helicopters II: The End Game Strategy (1998).
Media attention to black helicopters increased in February 1995, when first-term Republican northern Idaho Representative Helen Chenoweth charged that armed federal agents were landing black helicopters on Idaho ranchers' property to enforce the Endangered Species Act. "I have never seen them", Chenoweth said in an interview in The New York Times. "But enough people in my district have become concerned that I can't just ignore it. We do have some proof."
The black helicopters conjecture resonates well with the belief held by some in the militia movement that troops from the United Nations might invade the United States. The John Birch Society originally promoted it, asserting that a United Nations force would soon arrive in black helicopters to bring the US under UN control. A similar theory concerning so-called "phantom helicopters" appeared in the UK in the 1970s.
This brief starts where responsible research should: with the source description of “Black helicopter” as a symbol of an alleged conspiratorial military takeover. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as a symbol of an alleged conspiratorial military takeover. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q4922342. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1995 and 1998.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Black helicopter” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.