| Deploying nation |  Japan |
|---|---|
| Host nation or area | Japan |
| Region | East Asia |
| Military branch | 🚢 Naval forces |
| Record type | Military exercise |
| Operation or mission | |
| Unit or formation | Not publicly confirmed |
| Personnel | Not disclosed |
| Equipment | Not stated |
| Status | Confirmed active |
| Start or report date | Oct 19, 2026 |
| Withdrawal or end date | — |
| Last verified | Oct 19, 2026 |
| Confidence | Medium: one credible outlet |
Background
About 45,000 SDF personnel, 6,100 vehicles, 40 vessels and 260 aircraft (Keen Sword 27). Where: Western and southern Japan, including the Okinawa island chain, the Sea of Japan and the East China Sea. Status: Biennial U.S.-Japan exercise, Oct. 19–29, with about 11,000 U.S. troops and forces from Australia, Canada, France, Germany, the Netherlands, New Zealand and the Philippines. Japan deployed its Type-25 surface-to-ship missile for training but did not fire it
Deployment timeline
- Record added from The Boston Report Military Deployments Tracker. Source report dated 2026-10-19.
Sources
Related deployments
- Malabar 2026 military exercise Confirmed active
- Japan: Japan Joint Staff surveillance of Chinese ships Confirmed active
- United States: Makin Island Amphibious Ready Group and 13th Marine Expeditionary Unit to Fleet Activities Yokosuka, Japan Confirmed active
- Freedom Flag 26-2 military exercise Confirmed active
- South Korea: Observers at Keen Sword 27 Confirmed active
- Keen Sword 2027 military exercise Historical
- United States: 3rd Cavalry Regiment (“Brave Rifles”), 18th Korea Rotational Force to Camp Hovey, South Korea Confirmed active
- China: Aircraft and naval ships around Taiwan to Around Taiwan Confirmed active
Public information only. Locations are given at country or sea-area level. Figures are shown as the source reported them; estimates and claims are labeled. Spot an error? Request a correction.