Kojiro Tooriyama

核・宇宙・安全保障 / Nuclear, space and national security. Retweet ≠ endorse.❤≠Like. Use them for reference points/bookmarks.

[Kazuto Suzuki @KS_1013]

おお、CNNがアストロスケールを取り上げ、アメリカがデブリ問題に消極的という論調で報じている。実際、米軍も考え方を変えてデブリ除去のルール作りや、民間企業にデブリ除去の支援をするようになってきている。汚染者責任での除去という議論につながってくれればなお良し。
https://t.co/kWjO2hnuOX

[Ali Vaez @AliVaez]

I spent most of last year working on regional diplomacy at the UN, and even having a sense of quiet efforts at de-escalating tensions between Iran and Gulf countries, these two statements issued in the last 24 hours are striking for several reasons. [thread]

[Martyn Williams @martyn_williams]

This demonstration at the Defence Development Exhibition was bit intense. Video broadcast today on North Korean TV.

[Dr. Jeffrey Lewis @ArmsControlWonk]

That glider looks like it is sitting on a Hwasong-12.

[Tetsuo Kotani/小谷哲男 @tetsuo_kotani]

韓国で緊急時の戦術核配備を主張する人はグアムにB61が���かれていると勘違いしている傾向がある。そして核のシェアリングを主張する場合、ソウルから60キロの38度線で核を使うという意味だとわかっていないことか多い。

[PMissionJapan Vienna @JapanMissionVie]

At the 2021 Article XIV Conference of the @CTBTO, the Foreign Minister of Japan🇯🇵, Mr. Toshimitsu MOTEGI:
✳️Commended the achievements of the CTBTO
✳️Called upon all States to sign and ratify the CTBT
✳️Assured Japan’s strong support to the ES, Dr. Floyd (@_RobFloyd)

[渡邉英徳 wtnv @hwtnv]

76年前の今日。1945年9月23日，終戦直後の長崎で焼け跡に残された十字架。「LIFE」誌のカメラマン，Bernard Hoffman が撮影。ニューラルネットワークによる自動色付け＋手動補正。

[渡邉英徳 wtnv @hwtnv]

76年前の今日。1945年9月23日，被爆6週間後の長崎で，焼け焦げた仏像が原子野を見つめる。Lynn P. Walker, Jr.が撮影。ニューラルネットワークによる自動色付け＋手動補正。

[JSF @rockfish31]

高市早苗氏、生放送で北朝鮮にミサイルを打たせない抑止力を問われ「精密誘導ミサイルの配備、これは絶対」 https://t.co/uKjhftnaVX 「北朝鮮にミサイルを打たせないために必要な抑止力は何なのか？」　これは候補者の回答以前に司会の質問が駄目。安全保障の専門家でもTVの前で答えるのは無理。

[Hans Kristensen (also on Bluesky) @nukestrat]

Not only is Australia getting special treatment from Biden with submarine nuclear propulsion technology, it is also getting the Tomahawk SLCM - something only the UK has managed and Israel been denied. Speaks to priority of getting more advanced shooters against China.

[Hans Kristensen (also on Bluesky) @nukestrat]

Curious that in a moved to shore up allied capabilities against China, first step triggers New Zealand reaffirmation of its ban on nuclear-propelled ships.

A reminder that if Biden approves nuke SLCM for US subs, it could reinvigorate “nuclear allergy” across region.

[JSF @rockfish31]

@show_murano そのうち鑑定のプロが貨車の大きさからミサイルの大きさを判定してはっきりさせてくれる筈。というか過去の従来型イスカンデルだと最長距離は600kmなんですよね。それがいきなり800kmも飛んだら脅威レベルの認識を改めないといけなくなる・・・

[(((James Acton))) @james_acton32]

For those that don't already know it, here's the fundamental rule of power within the U.S. State Department (and the U.S. government more generally):

Regional bureaus > Functional bureaus

[JSF @rockfish31]

ATACMS擬き、イスカンデル擬き、拡大型イスカンデル

[The Hon. Christopher A. Ford @TheHonChristop1]

@james_acton32 Fueling details are still forthcoming, but it's not too hard to imagine lifetime-of-unit fueling, supply and take back provisions, or some such that won't cause the nonproliferation sky to fall. My favorite scenario is not needing to meet the regional threat at all. But we do.

[Eric Brewer @BrewerEricM]

Notable that in this statement there is an entire paragraph devoted to the importance of nonproliferation.

https://t.co/1XHWHF4CNF

[JSF @rockfish31]

韓国の新型SLBMの初出映像など。玄武4もある？ https://t.co/nVYJKTGzfr

[Josh Rogin @joshrogin]

Senior Trump admin national security official to me on Gen. Milley's reported secret calls to Chinese generals:

“It was dangerous for Mark Milley to be doing freelance diplomacy on China without involving any of the other senior officials dealing with China at the time..." 1/3

[Ankit Panda @nktpnd]

Another.

[Eric Brewer @BrewerEricM]

How much should we actually worry about this development? Some thoughts and some context…1/