The Information Warfare Command (Japanese: 情報作戦集団, Jōhō Sakusen Shūdan) is an information warfare formation of the Japan Maritime Self-Defense Force (JMSDF). It is directly subordinate to the Minister of Defense, with its headquarters located at the Ministry of Defense complex in Ichigaya, Tokyo.[1]
| Information Warfare Command | |
|---|---|
| 情報作戦集団 | |
| Active | 23 March 2026 – present |
| Country |  Japan |
| Branch |  Japan Maritime Self-Defense Force |
| Type | Military intelligence Cyber warfare Information warfare |
| Role | Intelligence, cyber defense, electronic warfare, and oceanographic operations |
| Size | Command |
| Part of | Directly under the Minister of Defense |
| Headquarters | Ichigaya, Shinjuku, Tokyo |
| Commanders | |
| Commander | Vice Admiral Takeshi Yoshioka |
| Chief of Staff | Rear Admiral Yuichiro Toi |
History
editThe Information Warfare Command was established on 23 March 2026 as part of a major reorganization of the Japan Maritime Self-Defense Force's intelligence and cyber warfare capabilities. The command consolidated several existing organizations, including the Fleet Intelligence Command, the Oceanographic and Anti-Submarine Support Command, and the Communications Systems Command, into a single organization directly under the Minister of Defense.[2]
The command was created to integrate the JMSDF's intelligence collection, cyber defense, communications, oceanographic, and information warfare capabilities into a unified operational structure.[3]
Organization
editThe Information Warfare Command is commanded by a vice admiral and consists of the following major subordinate formations:[4][5]
- Information Warfare Command Headquarters
- Operational Intelligence Command
- Intelligence Collection Unit
- Matsumae Surveillance Station
- Tappi Surveillance Station
- Iki Surveillance Station
- Kami-Tsushima Surveillance Station
- Shimo-Tsushima Surveillance Station
- Meteorological and Oceanographic Intelligence Unit
- Okinawa Oceanographic Observatory
- Shimokita Oceanographic Observatory
- Kagoshima Acoustic Measurement Station
- 1st Oceanographic Operations Unit
- 1st Acoustic Measurement Unit
- Intelligence Collection Unit
- Cyber Defense Command
- Central Cyber Defense Unit
- Yokosuka Cyber Defense Unit
- Kure Cyber Defense Unit
- Sasebo Cyber Defense Unit
- Maizuru Cyber Defense Unit
- Ōminato Cyber Defense Unit
- Shimōsa Cyber Defense Unit
- Naha Cyber Defense Unit
Commanders
edit| No. | Commander | Took office | Left office | Notes |
|---|---|---|---|---|
| 1 | Vice Admiral Takeshi Yoshioka | 23 March 2026 | In office |
References
edit- ↑ "海自が史上最大級「攻めの再編」 戦力集約、指揮一元化 中国進出で警戒任務増加に対応" (in Japanese). 産経新聞. 2026-03-23. Retrieved 2026-06-05.
- ↑ "Maritime Self-Defense Force FY2025 Budget Request". Ships of the World. 24 September 2024. Retrieved 23 March 2026.
- ↑ "海自 新部隊「情報作戦集団」発足 偽情報やサイバー攻撃に対応". NHKニュース (in Japanese). 2026-03-25. Retrieved 2026-06-05.
- ↑ "Cabinet Order Partially Revising the Enforcement Order of the Self-Defense Forces Act (Cabinet Order No. 24 of 2026)" (PDF). Ministry of Defense.
- ↑ "海自 水上艦隊を新編 情報作戦集団も発足". 朝雲デジタル (in Japanese). 2026-04-16. Retrieved 2026-06-05.