Sanae Takaichi is expected to reshuffle her cabinet between 16 and 18 September, and the reporting this week has already written the headline: continuity, steady hands, a rival kept close. Foreign Minister Toshimitsu Motegi is likely to stay. So is Finance Minister Satsuki Katayama. And so, Bloomberg and The Japan Times both reported this week, is Shinjiro Koizumi at defence.
Nobody mentioned the other job Koizumi holds. Since June 2024 he has been secretary-general of the Diet’s cross-party caucus on unidentified anomalous phenomena — the body set up specifically to push the Japanese government into taking UAP seriously as a national security matter.
So Japan now has a defence minister who is, in his other capacity, one of the two men running the national UFO lobby. He has held the ministry for nearly eleven months. In that time Japan has published exactly nothing.
The caucus, and who is in it
The group was founded at a meeting in the Diet on 6 June 2024, under a name that translates about as gracefully as you would expect: the Unidentified Aerial Phenomena Clarification League from a National Security Perspective. Eighty-plus lawmakers signed up, from both the ruling coalition and the opposition.
It is not a fringe outfit, which is the first thing worth establishing. The chair is Yasukazu Hamada, a former defence minister and the Liberal Democratic Party’s head of parliamentary affairs. The secretary-general is Koizumi. Shigeru Ishiba, who became prime minister a few months after the launch, signed on as its supreme adviser. Former defence ministers sit among the membership.
The trigger was not a sighting. It was an American document. AARO’s historical review identified the region running from western Japan towards China as a hotspot for UAP reporting, on the basis of trends between 1996 and 2023 — and Japanese lawmakers read that, reasonably enough, as somebody else telling them about their own airspace.
A foreign office had characterised Japanese skies as a UAP hotspot. Japan had not.
The caucus’s stated purpose was to get Japan’s own detection and analysis capability up to the point where that sentence stops being true.
March 2026: the ask
On 24 March this year the caucus announced it would formally propose a dedicated government body to coordinate UAP intelligence, finalising the text at a general meeting in Tokyo at the end of the month. The proposal put the new office not under the Ministry of Defense but under the Deputy Chief Cabinet Secretary for Crisis Management — in the Cabinet Office, above the individual ministries.
That placement is the most interesting thing in the document, and it is easy to skate past. A UAP unit inside the defence ministry answers to the defence ministry, and sees what the defence ministry sees. A unit in the Cabinet Office sits where the JSDF, the Japan Coast Guard, the transport ministry and the police all report upwards — which is the only vantage point from which anybody could tell whether a radar return off Okinawa and a pilot report over the Sea of Japan are the same problem.
It is, in other words, a serious institutional proposal rather than a gesture. Whether it has gone anywhere is a different question, and the honest answer is that no such body has been announced. Japan’s defence ministry filed a record budget request on 31 August — ¥8.9 trillion, roughly $55.6 billion, the largest in its history. The reporting on it describes drones, long-range strike, AI-enabled command. No UAP office has been announced alongside it, and we have not seen one in what has been published of the request.
What Tokyo said when it was asked directly
The moment that ought to be better known came on 11 May 2026, and it came because Washington forced it.
When the Pentagon began publishing its PURSUE tranches, two of the videos in the first batch turned out to have been recorded near Japan. One, as The Japan Times reported, shows an object resembling “a football-shaped body”. Japanese reporters did the obvious thing and asked the government about it.
Chief Cabinet Secretary Minoru Kihara confirmed he had watched the footage. On the broader question he said Japan is “constantly gathering and analyzing information with great interest, while maintaining close coordination with the United States and other countries” on national security incidents including UAP.
Then he was asked whether Japan would release its own equivalent files. His answer was that the government would “make specific, case-by-case decisions after comprehensively considering various factors, including the risk of our intelligence-gathering capabilities being exposed.”
Separate the claim from the confirmation here, because a lot of coverage did not. Kihara did not stand up and announce that Japan holds UAP video. What he did was answer a question about releasing Japan’s files with a formula about weighing disclosure against exposing intelligence-gathering capability — an answer that would be incoherent if the cupboard were bare. That is an inference, and a strong one. It is not a confession, and we are not going to write it up as one.
There has been a reporting rule since 2020
The reason the inference is strong is that Japan has been formally collecting this material for six years.
In September 2020 the then defence minister, Taro Kono, issued what the ministry called its UFO Response Policy — UFO taisho hoshin. It instructs Self-Defense Force personnel who encounter an unidentified object, in the air or entering Japanese airspace, to record and photograph it and to pass the material up for necessary analysis. Visual sightings, radar contacts, aircrew observations: all of it goes to the ministry.
Kono, characteristically, undercut the whole thing at the time by saying he does not believe in UFOs. He was not being coy. The directive was drafted as air-defence housekeeping — a procedure for the day a JASDF pilot meets something unfamiliar, at a moment when unfamiliar things over Japan increasingly meant Chinese drones and balloons.
But procedures generate paperwork whatever the minister believes. Six years of mandatory reporting means six years of files, and nobody outside the ministry has seen one.
The sceptic’s read, which is strong
It is worth putting the deflationary case at full strength, because on the evidence available it is probably right.
The ministry itself has said it “strongly presumes” that flying objects sighted over Japan in recent years were surveillance balloons. That is not a cover story; it is the likeliest explanation for the overwhelming majority of what a modern air-defence network flags, and it matches what happened when Europe spent August working through its own unidentified objects and found drones.
The AARO hotspot finding is also softer than it sounds. A region with dense radar coverage, heavy military air traffic, a large aviation sector and an active reporting culture will produce more UAP reports than an empty one — that is a statement about sensors and paperwork, not about what is in the sky. Reporting density is not phenomenon density, the same trap that makes rising pilot sighting numbers look more dramatic than they are.
And a parliamentary caucus is a lobby, not a finding. Japanese lawmakers form giin renmei on almost everything; joining one costs a member very little and commits them to nothing. Eighty signatures tells you a subject has become politically safe to be seen near. It does not tell you anybody has seen anything.
None of which disposes of the actual problem, which is procedural rather than exotic.
The gap that is actually the story
Set the two positions side by side.
Japan operates one of the most heavily instrumented air-defence networks in the world, over a region its principal ally has publicly designated a UAP hotspot. It has required its forces to record and report unidentified objects since 2020. Its senior government spokesman, asked about releasing that material, answered in the language of protecting intelligence capability rather than the language of having nothing. Its defence minister is the sitting secretary-general of the parliamentary group demanding the government do more about all this.
And the public record contains: nothing. No release, no published assessment, no dedicated body, no announced timetable — while the United States has spent four months putting cockpit video and intelligence cables on a website anybody can load.
We have written this shape before, more than once. Britain stopped investigating in 2009 and has told Parliament the same sentence ever since, while the Americans publish tranche after tranche. Brussels monitors quietly and insists it is somebody else’s job. Japan is the third variation, and the most awkward of the three, because Japan has not claimed the subject is uninteresting. It has built a reporting pipeline, joined the caucus, read the American files, and then declined to say what its own pipeline produced.
There is also a perfectly mundane explanation available, and it is probably the true one: Japanese UAP files are full of Chinese balloons and drones, and publishing them would show precisely how well Japan detects Chinese balloons and drones. Kihara’s answer says as much, in the polite register. That is a real and legitimate reason to withhold — it is the same reason the Pentagon’s own releases arrive with the interesting numbers redacted out of the sensor data.
It just is not the same thing as transparency, and it should not be reported as though it were.
The UAP Times take
This one earns a Credible rating — four out of five on our scale — and the reason it is not our top mark is worth spelling out, because the individual facts are about as solid as this subject gets.
Koizumi is defence minister, and the expectation that he keeps the job through this month’s reshuffle is wire copy — though the reshuffle itself has not happened yet, and we have written it as the forecast it is. His caucus role, the caucus’s membership and its chair are on the record via South China Morning Post and Reuters reporting from its 2024 launch. Kihara’s remarks are Japan Times reporting of an on-camera press conference. The 2020 UFO Response Policy is a published ministry directive. None of that is in dispute.
What is not established is the thing the story turns on. We do not know what is in Japan’s UAP holdings, how much there is, or whether anyone in Tokyo considers any of it anomalous. The gap between a government that collects and a government that publishes is documented; the reason for it is inferred. A four means the facts are sound and the reading of them is ours.
Our reading, for what it is worth, is unglamorous. Nobody in Tokyo is sitting on a craft. Japan is doing what a cautious, capable, deeply sensor-rich democracy does when its files mostly document how good its sensors are: saying nothing, politely, for reasons that are genuinely defensible and happen to be indistinguishable from stonewalling.
Which leaves one fair question for a minister who chairs the lobby and runs the ministry at the same time. Six years of mandatory reports have gone into the building Shinjiro Koizumi now runs. His caucus asked the government to build something that could look across all of it. He is, uniquely, in a position to say whether any of it was worth looking at — and so far he has said nothing at all.
Further reading: for the same shape in Britain, see Britain Stopped Investigating UFOs in 2009 — and for what the American files actually contain when they do arrive, A Gunship Fired Its Cannon and the Orbs Moved.
Follow the file
Every new dispatch from the UAP desk, in your inbox. Sourced, sceptical, and no more than one email a week.