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31.03.2026

The Day the Nikkei Plunged 7,786 Yen

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This page is an archive of main headlines from Japan for 31.03.2026.

It displays 50 headlines from many sources chronologically, as they appeared throughout the day, accompanied by AI overviews that were written in real time.

31.03.2026 ⇢ The Day the Nikkei Plunged 7,786 Yen
⌹

Japanese editors prioritized the Nikkei 225's record 7,786-yen monthly plunge, the largest in 35 years, attributed to Middle East turmoil. This economic crisis coincided with a governance collapse at KDDI, where 246 billion yen in fictitious sales led to executive resignations. In response to the energy crisis, Prime Minister Takaichi formalized a ministerial task force to secure petroleum and medical supplies. Simultaneously, the first domestic deployment of long-range counterstrike missiles in Kumamoto marked a concrete shift in Japan's defensive posture.

31.03.2026
00:16
Kyodo News

G7 ready to take all necessary measures for stable energy supply: statement

The Group of Seven industrialized nations said Monday they "stand ready to take all necessary measures" to "preserve the stability and security of the energy market," as the U.
00:16
00:59

09:18⇢The Bill for the Burning Strait

⌹Japanese editors are prioritizing the escalating financial and physical threats in the U.S.-led campaign against Iran. Outlets highlight President Trump’s demand that Gulf nations cover the 1.7 trillion yen war cost and his warning to destroy Iran’s power infrastructure unless the Strait of Hormuz is opened (Nikkei, TBS). While Trump claims negotiations are progressing, Iranian officials’ denials suggest a significant disconnect in the diplomatic narrative (NHK, Yahoo).
11:06
11:06
アフリカなど新興囜を䞭心にガ゜リンや軜油などの圚庫䞍足が深刻になっおいる。米囜・むスラ゚ルずむランの軍事衝突でホルムズ海峡が事実䞊封鎖され、原油の䟛絊が滞っおいるためだ。ガ゜リンなどの石油補品は原油を粟補しお䜜られ、囜や地域により需芁や䟛絊ルヌトは異なる。地域や補品によっお圚庫の差は倧きく、局地的に経枈に倧きな圱響を䞎える可胜性がある。 䞀般に原油は産油囜から消費囜に運ばれ粟補される。粟補により 
11:06

11:07⇢Long-Range Counterstrike Batteries Operational

⌹Japanese editors are prioritizing the activation of long-range counterstrike missiles at Ground Self-Defense Force bases, marking a definitive shift in the nation's 'defense-only' posture (Kyodo, Asahi, Yahoo). Simultaneously, focus remains on the deepening energy crisis caused by the Hormuz blockade, with the government establishing a task force to secure oil supplies while Trump claims diplomatic progress despite Iranian denials (NHK, Yomiuri, Nikkei, TBS).
11:33
陞䞊自衛隊は、敵基地攻撃胜力反撃胜力を担う長射皋ミサむルを31日から配備する。軍備拡倧を続ける䞭囜を念頭に、海自、空自でも同様の準備が進む。盞手が攻撃に着手したず刀断すれば盞手領域内のミサむル拠点をたたくこずも想定した装備であり、「専守 
11:33
12:03
売春防止法改正に向けた議論が始たった。買う偎を売春の「盞手方」ず䜍眮づけ、凊眰の察象ずしない法のあり方には、買う偎を免責しおいお「性差別的だ」ずの声がかねお䞊がっおいた。だが、売防法だけが倉わればいいのか。珟圚、颚営法のもずで「性亀」以倖の 
12:03

12:18⇢A Shield for the Dwindling Fuel

⌹Japanese editors are prioritizing Prime Minister Takaichi’s establishment of a ministerial task force to stabilize oil and medical supplies (Sankei, TBS, Yahoo). This mobilization responds to worsening global fuel shortages triggered by the Hormuz Strait blockade (Nikkei). Simultaneously, the first domestic deployment of long-range stand-off missiles in Kumamoto underscores the military's transition toward an active counterstrike posture (Yomiuri, Kyodo).

14:18⇢A Minister for the Empty Tank

⌹Japanese editors are prioritizing the formalization of Prime Minister Takaichi’s energy security strategy, specifically the appointment of a dedicated minister to stabilize petroleum supplies (TBS, Nikkei). While centrist and conservative outlets track the administrative response to the Hormuz blockade (TBS, Nikkei Asia), the injury of workers at the Hyper-Kamiokande facility (Chunichi) and the national high school baseball finals (NHK, Yahoo) offer a domestic shift in focus.
14:53
Kyodo News

Kyodo News Digest: March 31, 2026

The following is the latest list of selected news summaries by Kyodo News.
14:53
15:17
第98回遞抜高校野球倧䌚は31日、兵庫県西宮垂の阪神甲子園球堎で決勝があり、倧阪桐蔭が7―3で智匁孊園奈良を砎っお4幎ぶり5床目の優勝を果たした。優勝回数は東邊愛知に䞊び歎代最倚タむずなった。 倧阪桐蔭は二回に䞭村勇斗の右前適時打で 
15:17

15:18⇢Osaka Toin Claims Tenth National Crown

⌹Japanese editors are prioritizing Osaka Toin’s record-tying victory in the national high school baseball tournament, marking their tenth overall championship title (Sankei, NHK, Asahi, Yomiuri, Yahoo). Simultaneously, focus remains on Prime Minister Takaichi’s formalization of an energy task force to mitigate the impact of the Hormuz blockade (TBS, Nikkei). Progressively-aligned media highlight the Aomori governor’s refusal to accept new spent nuclear fuel deliveries (Mainichi).
15:27
青森県の宮䞋宗䞀郎知事は31日、䜿甚枈み栞燃料の䞭間貯蔵斜蚭同県む぀垂ぞの2026幎床分の燃料蚈60トンの搬入を「珟時点では認めない」ず衚明した。同県六ケ所村で建蚭䞭の再凊理工堎に぀いお26幎床䞭の完成が難しく、受け入れの前提条件が敎っおいないずした。 囜は䜿甚枈み燃料の再利甚を柱ずする「栞燃料サむクル」を原子力政策の根幹に䜍眮づける。県の受け入れ拒吊が長期化すれば゚ネルギヌ安定䟛絊の土 
15:27
16:19

16:27⇢Shortages at the Hormuz Gates

⌹Japanese editors are prioritizing a massive accounting scandal at KDDI subsidiaries Biglobe and G-Plan involving 246 billion yen in fictitious sales (NHK, Asahi, Yomiuri). Simultaneously, focus remains on the Iran conflict as Trump prepares for ground operations (Sankei) and fertilizer shortages hit Southeast Asia (Nikkei Asia). Domestically, Aomori’s governor has rejected new spent nuclear fuel deliveries, citing delays in reprocessing facilities (Nikkei).
16:34
KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円にのがる過倧蚈䞊が行われ、手数料ずしお329億円が倖郚 
16:34
16:53
私たちが知らない、圌女たちがここに来た理由ず人生。「すっぜり歎史から抜けおいた」。戊争ず貧困、差別の䞭を生き抜いた姿が䌝えるこず
16:53
17:07
Kyodo News

Long-range counterstrike missiles become operational at 2 Japan GSDF bases

Japan's Defense Ministry said Tuesday that long-range missiles with counterstrike capabilities have been brought into service at two Ground Self-Defense Force bases in the country.
17:07
17:07
日本株の3月の䞋萜幅は35幎ぶりに過去最倧を曎新した。䞭東情勢の混迷や原油䟡栌の急隰を背景に、玠材や機械など広範な䌁業からマネヌが流出した。䞭東諞囜も巻き蟌んだ戊闘が収束に向かい、原油高が緩和しない限り、4月も䞍安定な盞堎が続きそうだ。 31日の日経平均株䟡の終倀は5侇1063円ずなり、2月末からの䞋萜幅は7786円13%ずなった。急萜を招いたのは、海䞊茞送の芁衝であるホルムズ海峡の事実䞊の 
17:07

17:08⇢The Nikkei's Record Red Tide

⌹Japanese editors are prioritizing the Nikkei 225’s record 7,786-yen monthly plunge, attributed to the Middle East turmoil (Nikkei). This economic anxiety coincides with a massive governance failure at KDDI, where 246 billion yen in fictitious sales led to executive resignations (NHK, Asahi, Yomiuri, Yahoo). Simultaneously, the activation of long-range counterstrike missiles at two domestic bases marks a concrete step in Japan’s new defensive posture (Kyodo, JBpress).
17:16
KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円、売䞊総利益で499億円にのがる過倧蚈䞊が行われ、手数 
17:16

18:05⇢A Thirty-Five Year Market Rupture

⌹Editors are highlighting a dual crisis: a governance collapse at KDDI and the economic fallout from the Middle East. The resignation of six KDDI executives following a 246-billion-yen accounting fraud (NHK, Asahi, Yomiuri, Yahoo) coincides with a record-shattering monthly plunge for the Nikkei 225 (Nikkei). In response, Prime Minister Takaichi has mobilized a task force to secure petroleum and medical supplies (TBS, Yahoo, Mainichi).
18:06
富士通はサヌバヌなどに搭茉しお人工知胜AI凊理に特化するAI半導䜓を開発する。回路線幅1.4ナノナノは10億分の1メヌトルの最先端品で玔囜産、省電力なのが特城ずなる。先端半導䜓量産を目指すラピダスぞ補造を委蚗する方針だ。 経枈産業省も開発費を䞀郚支揎する芋通し。経枈安党保障を背景に自囜䞻導でAI技術を確立しようずする䞖界の動きに察応する䞀歩ずなる。 省電力のNPUを開発 「NPUニュヌ 
18:06
18:16
KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円、売り䞊げ総利益で499億円にのがる過倧蚈䞊が行われ 
18:16
18:21
18:29
朝日新聞

KDDI子䌚瀟、広告事業99.7%が架空取匕 瀟長「深くおわび」

KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円、売り䞊げ総利益で499億円にのがる過倧蚈䞊が行われ 
18:29
18:31
朝日新聞

KDDI子䌚瀟、広告事業99.7%が架空取匕 瀟長「深くおわび」

KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円、売り䞊げ総利益で499億円にのがる過倧蚈䞊が行われ 
18:31
19:16
朝日新聞

KDDI子䌚瀟、広告事業99.7%が架空取匕 瀟長「深くおわび」

KDDIは3月31日、子䌚瀟ビッグロヌブずその子䌚瀟ゞヌ・プランの䞍正䌚蚈問題で蚭眮した特別調査委員䌚の調査結果を公衚した。 2瀟のネット広告事業の架空取匕で、売䞊高は环蚈で2461億円、売り䞊げ総利益で499億円にのがる過倧蚈䞊が行われ 
19:16

19:30⇢The Gathering of Allies in Tokyo

⌹Japanese editors are prioritizing the diplomatic coordination among G7 and like-minded nations as world leaders visit Tokyo amid international uncertainty. Prime Minister Takaichi met with Indonesia's President Prabowo on March 31 and will meet France's President Macron on April 1 (Mainichi, Sankei). This focus on alliance-building coincides with continued coverage of Indonesia's fuel rationing measures to address energy shortages (Nikkei Asia).
21:13
数孊の超難問「ABC予想」の蚌明に぀いお、ZEN倧孊などの囜際研究チヌムが31日、「1幎半前から蚌明の怜蚌を進めおいた」ず発衚した。怜蚌は途䞭だが、京郜倧の望月新䞀教授57の蚌明には「珟時点で解明できおいないポむントがある」「ギャップ 
21:13

21:15⇢The Russian Crude Scramble

⌹Japanese editors are prioritizing the global scramble for Russian crude oil as Iran's reported encouragement of Houthi attacks in the Red Sea intensifies supply fears, with multiple outlets detailing how nations are turning to Russia despite limited economic benefits (TBS, NHK). This focus on energy security coincides with continued coverage of diplomatic coordination among G7 and like-minded nations as world leaders visit Tokyo (Mainichi).
21:51

22:18⇢Iran's Red Sea Gambit

⌹Japanese editors are prioritizing the escalating Iran conflict as NHK reports Iran is encouraging Houthi attacks in the Red Sea, while Nikkei Asia details worsening fertilizer shortages in Southeast Asia due to price spikes from the war (NHK, Nikkei Asia). This focus on regional instability coincides with coverage of Japan and France agreeing to jointly procure rare earths (Yahoo).
23:11
【ワシントン=甲原最之介】トランプ米倧統領は31日、ホルムズ海峡の事実䞊の封鎖によっお圱響を受けおいる囜に察し、自ら行動するよう芁求した。英囜を䟋に挙げ「米囜はもう、あなたたちを助けない。自分の石油は自分で取りに行け」ずSNSに投皿した。 「ホルムズ海峡のせいでゞェット燃料を手に入れられない党おの囜々」に向け、米囜から燃料を賌入するか、海峡に行き自ら戊うこずを提案した。「あなたたちは自分自身で戊 
23:11
23:32
Kyodo News

Japan, Indonesia to promote economic ties, cooperate on Middle East

Japanese Prime Minister Sanae Takaichi and Indonesian President Prabowo Subianto agreed Tuesday to promote concrete cooperation in the economic and security fields, as Tokyo aims to boost relations with the major Southeast Asian power with China in mind.
23:32