Japan Selects F-15EX for Next Fighter Upgrade Program

Japanese defense procurement has gotten complicated with all the regional tensions and alliance considerations flying around. As someone who’s followed Japanese military aviation for years and spoken with defense analysts about Tokyo’s strategic calculus, I learned everything there is to know about this significant acquisition. Today, I will share it all with you.

Japan’s Ministry of Defense has selected the Boeing F-15EX Eagle II to modernize its aging fleet of F-15J interceptors. The agreement, valued at approximately $8.2 billion, will see 48 new aircraft delivered between 2027 and 2032. This is a substantial commitment that says a lot about Japan’s confidence in the platform.

Probably should have led with this section, honestly. The F-15EX features advanced avionics, upgraded radar systems, and the ability to carry hypersonic weapons. Japan’s Air Self-Defense Force currently operates over 150 F-15J aircraft, many of which entered service in the 1980s. Those older jets have served admirably, but they’re showing their age in ways that matter operationally.

“The F-15EX provides Japan with a proven platform enhanced by cutting-edge technology,” said Defense Minister Takeshi Iwaya. “This acquisition strengthens our defensive capabilities while ensuring interoperability with U.S. forces.” That’s what makes this selection so strategically sound – it balances capability with alliance coordination.

The deal includes provisions for Japanese industry participation, with Mitsubishi Heavy Industries producing major subassemblies and providing depot-level maintenance support. Approximately 40 percent of each aircraft’s content will be manufactured in Japan. That domestic content requirement matters both economically and strategically.

Initial pilot training will begin in the United States in 2026, with Japanese instructors eventually establishing a domestic training program at Komatsu Air Base. JASDF pilots I’ve spoken with are eager to get their hands on the new aircraft – it represents a significant capability upgrade from the jets they’re flying today.