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21.04.2026

The Day the Five Categories Fell and the Tank Shell Exploded

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This page is an archive of main headlines from Japan for 21.04.2026.

It displays 44 headlines from many sources chronologically, as they appeared throughout the day, accompanied by AI overviews that were written in real time.

21.04.2026The Day the Five Categories Fell and the Tank Shell Exploded

Japanese editors began the day reporting the government's abolition of the 'five categories' restriction on weapons exports, with multiple outlets detailing the revision of defense equipment transfer rules to permit lethal arms sales to allies and like-minded nations, including countries in conflict under special circumstances. Throughout the afternoon, coverage intensified on a fatal tank ammunition explosion during Ground Self-Defense Force training in Oita Prefecture, with multiple outlets reporting three personnel dead and one injured, as the GSDF established an accident investigation committee. Simultaneously, editors maintained coverage of the 'Hokkaido-Sanriku Offshore Subsequent Earthquake Attention Information' issued the previous day, warning of potential larger quakes within a week across seven prefectures.

21.04.2026
00:16
20日午後4時52分ごろ、三陸沖を震源とする地震があり、青森県階上(はしかみ)町で最大震度5強を観測した。北海道と東北の主に太平洋側に津波警報と注意報が発表され、岩手県の久慈港で80センチの津波を観測した。気象庁と内閣府は同日夜、巨大地震が…
00:16
01:00
政府は重要鉱物やプラスチックなどのリサイクルを強化するため、2030年までに施設整備や技術開発向けに官民で1兆円を投資する方針だ。国内での再生材の増産により資源の海外依存を低減し、日本の経済安全保障につなげる。 近くまとめる政府の循環経済行動計画に盛り込む。計画は夏に公表予定の経済財政運営と改革の基本方針(骨太の方針)に反映する。 1兆円はリサイクル業者への補助金や官民ファンドの脱炭素化支援機構…
01:00
09:18
Kyodo News

Japan PM sends offering to war-linked Yasukuni shrine for spring rite

Japanese Prime Minister Sanae Takaichi sent a ritual offering to Yasukuni shrine in Tokyo on Tuesday as the shrine, viewed by China and South Korea as a symbol of Japan's wartime militarism, started its three-day spring festival.
09:18
10:01
政府は21日、殺傷能力のある防衛装備品の輸出に制約を課す「5類型」の撤廃を決定した。同盟・同志国と装備品を融通し合い、防衛力を高める。国内の防衛産業の販路を広げて生産基盤を強化し、有事の継戦能力を確保する狙いもある。 閣議と国家安全保障会議(NSC)の9大臣会合で輸出管理ルールである「防衛装備移転三原則」と運用指針を改定した。 三原則の大枠は残しつつ、輸出を推進する目的を改めた。「同盟・同志国な…
10:01
10:16

10:23The Five Categories Fall

Japanese editors are reporting on the government's decision to abolish the 'five categories' restriction and allow lethal weapons exports, with multiple outlets detailing the revision of the Defense Equipment Transfer Three Principles to permit arms sales to allies and like-minded nations, including countries in conflict under special circumstances, while noting aims to strengthen domestic defense industry and wartime sustainability (Asahi Shimbun, Yahoo News Japan, NHK News, Nikkei Shimbun, Mainichi Shimbun, Sankei Shimbun).
10:29
Kyodo News

Haneda airport experiences traffic control glitch, flights delayed

Haneda airport in Tokyo suffered a glitch in its air traffic control system on Tuesday morning, causing flight delays, the transport ministry said.
10:29
11:10
日立製作所が白物家電事業をノジマに売却することで最終調整に入った。2009年3月期の巨額赤字から17年間、安定的に稼げる企業構造へと事業を入れ替えてきた。白物家電は構造改革の完遂に向けた「最後の非中核事業」だった。 日立は09年3月期に7873億円の最終赤字を計上した。これを契機に「社会イノベーション」を軸に定め、巨艦と呼ばれた売上高10兆円企業をつくり替えてきた。ITサービスや送配電網、鉄道と…
11:10

11:47The Training Ground Explosion

Japanese editors are reporting on a tank ammunition explosion during training at the Ground Self-Defense Force's Hijiudai training area in Oita Prefecture, with multiple outlets detailing that three personnel are in cardiopulmonary arrest or unconscious, and one is seriously injured, as emergency services respond to the incident (Yahoo News Japan, TBS News, NHK News, Sankei Shimbun).

13:18The Training Ground Explosion

Japanese editors are reporting on a fatal tank ammunition explosion during training at the Ground Self-Defense Force's Hijiudai training area in Oita Prefecture, with multiple outlets detailing that three personnel have died and one is injured, as emergency services respond to the incident (TBS News, NHK News, Sankei Shimbun).
13:52
Kyodo News

3 SDF members dead after explosion during training in southwestern Japan

The unintentional explosion of a tank shell at the Ground Self-Defense Force's training range in southwestern Japan left three of its members dead and another member injured on Tuesday, the GSDF said.
13:52
14:16
14:34

15:24The Training Ground Explosion

Japanese editors are reporting on the fatal explosion of a tank shell during Ground Self-Defense Force training in Oita Prefecture, with multiple outlets detailing that three personnel have died and one is injured, as emergency services respond to the incident (NHK News, Kyodo News English, TBS News, Yahoo News Japan).
16:24
日銀が27〜28日に開く金融政策決定会合で、政策金利を0.75%で据え置く公算が大きくなった。中東情勢の混迷が続くなかで日本の経済・物価情勢に与える影響を見極めきれず、追加利上げの是非の判断は次回の6月会合に持ち越す。 3月の前回会合では高田創審議委員が物価の上振れリスクを理由に利上げを提案し、反対多数で否決した。 今回も9人いる政策委員の一部が利上げを主張する可能性がある。2025年12月以来…
16:24

16:41The Training Ground Explosion

Japanese editors are reporting on the fatal explosion of a tank shell during Ground Self-Defense Force training in Oita Prefecture, with multiple outlets detailing that three personnel have died and one is injured, as emergency services respond to the incident (NHK News, Kyodo News English, TBS News, Yahoo News Japan, Sankei Shimbun).
17:16
18:16

18:31The Five Categories Fall

Japanese editors are reporting on the government's abolition of the 'five categories' restriction on weapons exports, with multiple outlets detailing the revision of defense equipment transfer rules to permit lethal arms sales to allies and like-minded nations, including countries in conflict under special circumstances, while noting aims to strengthen the domestic defense industry (Asahi Shimbun, Yahoo News Japan, Nikkei Asia, Mainichi Shimbun, Yomiuri Shimbun).
19:00
プルデンシャル・グループ傘下のジブラルタ生命保険で元社員らによる顧客からの金銭詐取被害の疑いが数十件規模で浮上していることが21日、分かった。プルデンシャル生命保険は再発防止に時間が必要と判断し、5月9日までとする新規契約の自粛期間を6カ月ほど延長する検討に入った。 複数の関係者が明らかにした。親会社のプルデンシャル・ホールディング・オブ・ジャパンが近く発表する。外部の専門家などが被害の実態を精…
19:00
19:00
19:14
Kyodo News

3 Japanese defense force members killed in tank shell explosion

The premature explosion of a tank shell at a Ground Self-Defense Force training range in southwestern Japan left three members dead and another one injured on Tuesday, the GSDF said.
19:14
19:16

20:18The Training Ground's Deadly Echo

Japanese editors are reporting on the fatal explosion of a tank shell during Ground Self-Defense Force training in Oita Prefecture, with multiple outlets detailing that three personnel have died and one is injured, as the GSDF establishes an accident investigation committee (TBS News, Kyodo News English, Sankei Shimbun, Yomiuri Shimbun, Nikkei Shimbun). Simultaneously, editors report on the government's revision of defense equipment transfer rules to abolish the 'five categories' restriction and permit lethal arms exports to allies, including conflict zones under special circumstances (Mainichi Shimbun, Asahi Shimbun).
21:07
21:16

22:36The Five Categories Fall

Japanese editors are reporting on the government's revision of defense equipment transfer rules to abolish the 'five categories' restriction and permit lethal arms exports to allies, including conflict zones under special circumstances, with multiple outlets detailing the policy shift and its implications for the domestic defense industry and international partnerships (Mainichi Shimbun, Sankei Shimbun, Nikkei Asia, Asahi Shimbun). Simultaneously, editors continue coverage of the fatal tank shell explosion during Ground Self-Defense Force training in Oita Prefecture, where three personnel died and one was injured (Kyodo News English, TBS News).
23:57
Kyodo News

Female worker dies after being trapped in equipment at Tokyo Dome park

A female worker inspecting equipment at an amusement park in Tokyo on Tuesday was trapped for about five hours and later died, police said.
23:57