A Russian military plane flew over the Northern Territories. Of 1,086 comments, the thread ran 85 to 15, 52 percent of the vote said stand firm and do not yield an inch, 21 percent used the word regret, and shoot it down or fire warning shots came to 133 comments and 7.7 percent. I counted 30 years of airspace violations in the Defense Ministry's own list: 18 by Russian aircraft, and zero warning shots

What happened

A breaking story from TBS NEWS DIG, published on Yahoo! News Japan at 2:11 on the afternoon of Monday 7 September 2026. According to the Defense Ministry, between the morning and the afternoon of 5 September a single Russian IL-20 intelligence-gathering aircraft came in from the continent and violated Japanese airspace over the Northern Territories. It then passed through the Sea of Okhotsk into the Pacific, flew south as far as the waters off Miyagi prefecture, and left towards the Sea of Japan. The Air Self-Defense Force scrambled fighters. The purpose of the flight was under investigation. The plane flew on a Saturday. The announcement came on the Monday.

The ministry's comment sits at the end of the article. The four northern islands are islands over which Japan holds sovereignty and are Japan's inherent territory, it says, but Japan is at present unable in practice to exercise jurisdiction over them, and the Northern Territories issue is one to be settled through diplomatic negotiation. That one sentence is the spine of this thread.

Here is what I thought when I read the article.

Going out of their way to violate the airspace of an island nation is deliberate. Everyone knows you cannot talk to communist states, Russia included. Japan's politicians, police and courts have all gone soft, every one of them. That is where Japan stands. Scramble the jets, express regret, and that is it. How many times have they done that in the last 30 years, and what did it achieve? Look it up.

Four readings, then, and one piece of homework. The flight was deliberate. You cannot talk to them. The politicians, the police and the courts have gone soft. Japan scrambles and expresses regret and nothing more. And: how many times in 30 years, and did it work? I went to count where the thread put its votes, and I did the homework in the ministry's own records.

85 to 15 — and the top comment alone took 23 percent

Across 1,086 top-level comments, the buttons came to 15,146 "I relate" and 2,657 "hmm" — 85 to 15. Note 0038 ran 74 to 26 and note 0037 ran 92 to 8, so this sits in the middle. What is extreme is how the votes pooled. The top 10 comments took 71 percent of the vote, the top 20 took 82 percent, and the top comment alone had 3,442 presses, 23 percent. Of the 1,086, 400 comments, 37 percent, got no "I relate" at all. The article went up at two in the afternoon and half of the thread was written between three and five. The top hardened early. What came later sank unread.

A word on the buttons, for readers new to this site. Under every comment on Yahoo! News Japan sit three buttons: "I relate", "I see" and "hmm". The first is the closest thing to agreement, the last to disagreement, and the figures in this note are the totals of those presses across the thread. I count the presses on top-level comments only, and I read every one of them before sorting them into groups by hand. The groups overlap where a comment says two things at once.

First place: "this cannot be overlooked" — stand firm, do not yield an inch, 52 percent

3,442 presses, 23 percent of the vote. I have cut the middle, where the original goes into history: the Rus principalities that preceded Russia spent some 240 years from the 13th century under Mongol rule, and Russia has been an expanding power ever since. It also drew 445 "hmm", the most in the thread. Second place, 2,017 presses, points the same way.

Comments about posture — stay alert and stand firm, do not yield an inch, if Japan looks weak-kneed it will be pushed further next time — numbered 24, with 7,935 presses, 52 percent of the vote. First, second and fourth place are here. Fourth, 1,249 presses: Putin, who holds Japan in utter contempt, landed on the Northern Territories to provoke us and then violated the airspace on top of it, so not an inch; for people living in a peace-addled daze, this is a chance to grasp in real terms that Russia can invade Japan whenever it likes. Eighth, 390 presses: now that Japan's airspace has been violated, the government must not end with regret but make a clear protest and a firm response, because keeping the peace does not mean silently accepting whatever the other side pleases.

One quirk of the numbers is worth writing down. Most of this group does not say shoot, and does not say sanction. It says firm, prepared, resolute. Where it names a measure at all, it goes as far as stronger defence and deterrence, or counter-strike missiles. Half the vote in this thread went to words about posture.

The word regret: 74 comments, 21 percent — nearly all saying regret alone does not work

Third place, 1,337 presses. Here is the regret cannon, ikan-hō. It is the Japanese internet's joke about a government whose response to an incident is to express regret, and only that: the regret is fired like artillery, and nothing lands. This comment does not say drop the protest. It says use the protest, force Russia to answer officially, and make the world see a disputed territory. It also drew 78 "I see" presses, third in the thread.

Fifth place, 582 presses. Comments using the word regret numbered 74, with 3,194 presses, 21 percent of the vote. Do not end with regret; the regret cannon has no effect; regret is all Japan can say, and that is why it is taken for a pushover. Almost every one points the same way. I could not find a comment among the 1,086 saying that an expression of regret is enough. Two comments, with 15 and 4 presses, explained the logic behind it: if Japan does not protest, silence will be read as acquiescence, so it says the words even if only for form. Twenty-eighth place, 57 presses, asked the prime minister to stop the broken-record response of "regrettable" and "cannot be overlooked", to find out for once how far Russia thinks it can go with Japan, to deploy destroyers around the Northern Territories and keep F-15s flying.

Comments proposing means that are neither words nor weapons — sanctions, tighter visas, halting seafood imports or used-car exports, breaking off relations, cancelling a programme that sends university students to Moscow — numbered 18, with 298 presses, 2.0 percent. Fourteenth place, 183 presses: between the visit to Etorofu and a monument that destroys the chrysanthemum crest, Russia's recent behaviour is intolerable; Japan should quietly commit to national defence as part of rethinking the relationship from the ground up, and for a start cancel the student trip to Moscow.

Shoot it down: 133 comments, 7.7 percent — half of it the sixth-placed comment I shared

Sixth place, 576 presses. This is the comment I shared on X. Comments demanding that Japan answer with weapons or with fire control — shoot it down, fire warning shots, lock on, illuminate it with radar — numbered 133, with 1,165 presses, 7.7 percent of the vote. By count they are 12 percent of the thread, more than the 24 comments on posture, but their vote is one seventh of that group's. Only 19 of the 133 had four presses or more; 68 had one or none. Half of the group's vote, 576 presses, belongs to this one sixth-placed comment. The words shoot down appeared in 106 comments with 987 presses, 6.5 percent; 34 comments with 207 presses, 1.4 percent, stopped at warning shots, a radar lock or a radar illumination. Fifteenth place, 165 presses, found it strange that Japan cannot even say it will shoot down a plane that violates its airspace, asked whether a country that only ever gets threatened has any intention of defending its sovereignty, and noted that under international law the wrongdoer is the other side. Twenty-fourth, 71 presses: fire warning shots at the very least, the moment the airspace is violated, before confirming the facts.

The shoot-it-down comments are short. Shoot it down. Why don't we shoot? The other way round they would have shot us. Pathetic. One-line comments, dozens of them, sit at the bottom of the thread with no presses at all. Not so much unread as late.

Stay calm, do not take the bait: 20 comments, 6 percent — but 12 percent of the "hmm"

Comments urging calm, warning against taking the bait, asking for careful diplomacy numbered 20, with 911 presses, 6.0 percent. Seventh place, 569 presses: if true this is not something to take lightly, but the government should lay out the facts calmly and quickly rather than making noise, explain why it happened and how it will prepare, because what reassures people is not strong words but a steady response and concrete steps against a recurrence. Twelfth, 204 presses: Russia is doing as it pleases, but Japan must not rise to a military provocation, because Russia uses exactly that to escalate; scrambling is the obvious response, and the stage we are at is to get the international community on our side.

This group drew 318 "hmm", 12 percent of all the "hmm" in the thread. Thirty-fourth place, 30 presses, wrote that unless Japan is ready for its citizens to be conscripted and to kill and be killed as in Ukraine, over-provoking Russia is unwise and careful diplomacy is needed — and collected 131 "hmm", the third most in the thread. When the sixth-placed comment opened by calling the people who rush to write stay calm cowards, this 34th-placed comment is the kind of voice it was cutting.

"It's the Northern Territories" — Russia controls that sky, said 40 comments, 2.6 percent

Twentieth place, 110 presses, and 22 "I see". Comments saying that Russia holds the islands, that calling an overflight a violation is a formality, that Etorofu has a base and fighters of its own, that there is nothing new here, numbered 40, with 396 presses, 2.6 percent of the vote. A small vote — but 339 "hmm", 13 percent of the thread's total.

Thirty-eighth place: 27 "I relate" against 136 "hmm". The 43rd-placed comment drew the same 136 "hmm" for writing that the islands were lost in a war, that if Japan did wrong in that war it perhaps cannot complain about the punishment, and that school never taught the writer enough to know. "Hmm" beat "I relate" on 161 comments in this thread, 15 percent, but the heavy defeats are these two and the 34th-placed one above. Write that the Northern Territories are Russia's and this thread hands you a hundred "hmm" and more.

How many times in 30 years, and did it work — I counted the Defense Ministry's records

From here on this is not the thread. It is my homework. The full 30-year count across the Northern Territories, the Senkakus and Takeshima is in a separate survey note. On 17 April 2026 the Joint Staff of the Defense Ministry published its summary of scrambles for fiscal 2025, with a chart of scrambles by fiscal year since 1958 and a list headed "published cases of airspace violation (49 in total)". That list is what I counted.

Airspace violations. The ministry has published 49 violations, from Rebun island on 19 August 1967 to the Senkaku islands on 3 May 2025. By country: Russia including the Soviet Union 44, China 4, Taiwan 1. Narrow it to the last 30 years, September 1996 to September 2026, and the list holds 20 cases, from Rebun on 14 February 2001 to the Senkakus on 3 May 2025: Russia 16, China 4. Add this year's two cases, not yet on the list — the IL-20 over the Northern Territories announced on 24 July and again on 7 September — and the 30-year figure is 22, of which 18 are Russian aircraft. By decade, Russian cases run: 1996 to 2000, none; 2001 to 2010, five; 2011 to 2020, seven; 2021 to this September, six. They have not gone down.

Scrambles. Over the 30 fiscal years from 1996 to 2025, fighters were scrambled 15,369 times. Fiscal 1996 had 234, fiscal 2004 the low of 141, fiscal 2016 the peak of 1,168. Fiscal 2025 had 595: 366 against Chinese aircraft, 214 against Russian, 2 against Taiwanese, 13 others. The Cold War peak of 944, in fiscal 1984, has been passed four times, in fiscal 2016, 2018, 2019 and 2021.

What Japan did. Across 68 years and 49 violations, Japanese fighters have used a weapon once: warning shots on 9 December 1987, when a Soviet Tu-16 bomber flew over the main island of Okinawa. In the last 30 years, zero. Beyond radio calls and manoeuvring, Japan has gone one step further exactly once as well: flares, on 23 September 2024, when a Russian IL-38 patrol aircraft violated the airspace north of Rebun three times in an afternoon. The defence minister of the day told an emergency press conference that it was the first use of flares since air-defence interceptions began, and then said this: the violation was extremely regrettable, and Japan had that day lodged an extremely stern protest with the Russian government through diplomatic channels and strongly demanded that it not happen again. Scramble, then express regret — the formula I described is the minister's own words. Russia's foreign ministry later denied that any violation had taken place, and on 3 October the chief cabinet secretary called that, too, extremely regrettable.

Over the Northern Territories, I could not find the word protest. It is not in this article, and it is not in the Jiji Press report of 24 July. The ministry's words are that Japan is unable in practice to exercise jurisdiction and that the issue is one for diplomatic negotiation. Nor does the list of 49 contain a single case over the Northern Territories. Off the Nemuro peninsula, off Cape Shiretoko, off Rebun — all of them over territorial waters on the Hokkaido side. When the 20th-placed comment guessed that the ministry had not made a point of announcing such flights before, it was consistent with the list. This year's two cases, in July and September, are of a different kind from the 49: the ministry announced flights over the Northern Territories as violations. Whether a protest was lodged or not, I could not establish from any official document.

Did it work? The numbers allow two statements. One: announced Russian violations have not declined in 30 years. Two: after the stronger response of September 2024, the flares, two more cases were announced in 2026. But those two were over the Northern Territories and the flares were over Rebun, so lining them up on one scale is crude. Nor could I find, in any official record, a scale that shows shooting stops the flights. Turkey shot down a Russian Su-24 in November 2015. South Korea fired 360 warning rounds at a Russian A-50 early-warning aircraft on 23 July 2019. That aircraft is the 42nd entry on Japan's list, the Russian plane that violated the airspace over Takeshima in Shimane prefecture. Japan protested to Russia, and protested to South Korea as well for firing in what Japan regards as its own sky. Russia told South Korea, too, that it had never entered the airspace. Six years on, joint flights by Russian and Chinese bombers appear in the same ministry document under 9 December 2025, from the East China Sea to the waters off Shikoku. Poland shot down Russian drones in September 2025, and Estonia announced the same month that three MiG-31s had spent 12 minutes in its airspace; both asked for consultations at NATO. Countries that fired and countries that did not have gone on receiving Russian aircraft. A scale for "effect" I could not find. What I found is a record of Japan answering, for 30 years, with the same words.

My reading, checked against the numbers

"Going out of their way to violate the airspace of an island nation is deliberate." Comments saying Russia is testing Japan, watching its reaction, probing, counting on Japan doing nothing: 19 comments, 883 presses, 5.8 percent. The word provocation appeared in 51 comments, 1,767 presses, 12 percent, the fourth-placed comment among them. The sixth-placed comment I shared says it too: that is the textbook way of testing the other side's reaction. Here the thread and I lean the same way.

"You cannot talk to communist states, Russia included." Comments saying talk does not work, dialogue is impossible, negotiation will never bring the islands back: 18 comments, 90 presses, 0.6 percent. The word communist appeared in 4 comments, 4 presses. Smaller than I expected. This thread does not say they will not listen so shoot, nor they will not listen so give up. It says stand firm against a party that will not listen. Eleventh place, 226 presses: repeating that the issue must be settled through diplomatic negotiation will not lead to a realistic solution; diplomacy should of course continue, but Japan also needs stronger defence and deterrence, because diplomacy is not hoping for the other side's goodwill but negotiating with national strength and deterrence behind you.

"Japan's politicians, police and courts have all gone soft." The word I used for politicians, seiji-ya, hacks, appeared in 2 comments, 3 presses. Police, courts or judges appeared in 3 comments, 14 presses, 0.1 percent. This thread is not looking at the police or the courts. The government, politicians, the prime minister or the foreign ministry were named in 130 comments, 939 presses, 6.2 percent, with 429 "hmm", 16 percent. The prime minister's name, Takaichi, appeared in 67 comments, 785 presses, 5.2 percent, with 365 "hmm", 14 percent; the fifth-placed comment is one of them. Weak-kneed, taken for a pushover, all talk, can do nothing: 124 comments, 4,077 presses, 27 percent. The thread does think Japan has gone soft. But it aims that at Japanese diplomacy as a whole more than at any politician by name.

"Scramble the jets, express regret, and that is it." The word regret appeared in 74 comments, 3,194 presses, 21 percent, and nearly all of them said regret alone does not work. The thread leans my way. The answer is in the section above: in 30 years, 22 announced violations, 18 by Russian aircraft, 15,369 scrambles, zero warning shots, one use of flares.

And the line from the comment I shared on X, that in any normal country an airspace violation means a shoot-down: shoot it down, fire warning shots, came to 133 comments and 7.7 percent, and half of that was this one comment. Many comments, thin votes. Turkey fired, South Korea fired, Poland fired. The Russian aircraft kept coming to them as well.

This thread is 1,086 people at six in the morning on 8 September 2026. They learned on 7 September about one plane that flew on 5 September, and wrote that afternoon. It is the mood of the moment when the Defense Ministry had written that the purpose of the flight was still under investigation.

For readers outside Japan — the Northern Territories, the scramble, and the regret cannon

The Northern Territories. Four islands east of Hokkaido: Etorofu, Kunashiri, Shikotan and the Habomai group. The Soviet Union occupied them in August and September 1945 and Russia administers them today. Japan claims all four as its own territory; Russia claims them as its own. In the Defense Ministry's phrase, they are islands over which Japan holds sovereignty but cannot in practice exercise jurisdiction. None of the ministry's 49 published violations is over these islands; every one is over land or water that Japan administers. As far as I could establish from the records, 24 July this year was the first time the ministry announced a Russian flight over the islands as a violation of Japanese airspace. That gap is the ground on which the 20th and 38th-placed comments stand. On 13 August this year President Putin visited Etorofu; Japan's prime minister said at a press conference that Japan protested strongly, and the foreign minister summoned the Russian ambassador. When the fourth-placed comment speaks of a landing on the Northern Territories, that is what it means.

The scramble. When an unidentified aircraft approaches Japan's air defence identification zone, Air Self-Defense Force fighters take off, draw alongside, call it on the radio and warn it. Fiscal 2025 had 595 scrambles, 1.6 a day. Actual violations of the airspace run from zero to three a year. The two numbers are entirely different things.

The regret cannon. Ikan, regret, is the diplomatic word for "we deplore this". After every airspace violation the Japanese government says the same thing: extremely regrettable; a stern protest through diplomatic channels; a strong demand that it not happen again. The Japanese internet calls this the regret cannon, ikan-hō, as if regret were artillery. The third-placed comment used the phrase; the word regret itself appeared in 74 comments, 21 percent. It is the self-mockery of a country that does not fire but does fire the regret cannon.

What this thread said. 85 to 15. Stand firm, 52 percent. Regret alone does not work, 21 percent. Shoot it down, 7.7 percent. Stay calm, 6 percent, with 12 percent of the "hmm". The islands are Russia's sky, 2.6 percent, with 13 percent of the "hmm". This thread hardly says shoot. It says that not shooting is shameful. And the record of 30 years of answering with the same words sits, as it is, in the Defense Ministry's own files.