Acceleration of GCAP: Italy's Funding Approval and Germany's Consideration of Participation Indicate a New Phase in Next-Generation Fighter Development

Tanaka Takashi | hiwars.com Japan-Pacific Security Analyst | March 2026

Introduction: A Turning Point for GCAP

In February 2026, two significant developments indicated that the future of the next-generation fighter "Global Combat Air Programme (GCAP)" could be greatly influenced. First, on February 12, the Italian Parliament approved a funding plan amounting to approximately 8.8 billion euros (about 10.7 billion dollars). Next, according to a report by The Japan Times on February 11, it was revealed that Germany, which is struggling with the joint fighter development (FCAS) with France and Spain, is considering participation in GCAP. These trends suggest that GCAP is becoming a new axis of European defense cooperation, extending beyond the framework of Japan, the UK, and Italy.

The Strategic Significance of Italy's Funding Approval

The funding approval by the Italian Parliament signifies the formal acceptance of costs that have ballooned to more than three times the initial estimates. This decision is not merely a budgetary measure but holds significant meaning as a reaffirmation of political commitment. Within Italy, there were calls for withdrawal or reassessment of GCAP due to rising costs. The Parliament's approval quelled those concerns and demonstrated a clear intention to continue the program.

This approval is good news for Japan. GCAP was officially launched after the UK, Japan, and Italy decided to integrate at the end of 2022, followed by the signing of a trilateral cooperation agreement in September 2023 and the conclusion of a treaty in Tokyo in December of the same year. If one of the partner countries had been financially or politically unstable, it could have impacted the development schedule and the framework for technology sharing. Italy's decision has dispelled that uncertainty and solidified the roadmap towards the target of operational commencement in 2035.

The Role of the Acquisition, Technology & Logistics Agency (ATLA) and the Current State of Technology Development

The Acquisition, Technology & Logistics Agency (ATLA) plays a central role as the point of contact for Japan. ATLA established a specialized organization in April 2020 to support the development of F-X and has since promoted the development of unique Japanese technologies such as stealth technology, high-output engines, and advanced sensor fusion.

According to the current plan, production of prototypes is expected to begin around 2024, with flight tests scheduled to start by 2028. The main contractor, Mitsubishi Heavy Industries, is joined by domestic defense industries such as IHI (engines) and Mitsubishi Electric (radar and electronic equipment), making GCAP significant in terms of maintaining and developing domestic technology.

In the division of technology responsibilities with UK’s BAE Systems, Rolls-Royce, Leonardo UK, and Italy’s Leonardo, efforts are being made to leverage each country's strengths. Cooperation between IHI and Rolls-Royce in engine technology and deep collaboration between Japan and the UK in stealth technology are reportedly progressing.

The Geopolitical Implications of Germany's Consideration of Participation

More noteworthy is the trend of Germany considering participation in GCAP. Germany is currently involved in the FCAS (Future Combat Air System) led by France and Spain, but the program has faced delays due to conflicts with France over development leadership and difficulties with technology transfer conditions.

If Germany leans towards participating in GCAP, the implications would be extensive. First, the financial foundation and technological capabilities of GCAP would be significantly strengthened. Germany's aerospace industry (MTU, Airbus Defense & Space, etc.) could become a valuable technological asset in the development of the successor to the F-2. Second, it would enhance Japan's presence in the context of NATO. Cooperation with Germany would elevate Japan's strategic value as a "bridge" connecting the Indo-Pacific and the Atlantic. Third, there would be increased political and financial pressure on FCAS. France and Spain would have to closely monitor Germany's movements, potentially leading to restructuring pressures across the entire framework of European defense cooperation.

However, there are several barriers to Germany's participation. GCAP is already legally established as a trilateral framework based on a treaty, and the addition of new participating countries requires the agreement of the existing three nations. Additionally, practical issues such as the confidentiality of technology transfer, the handling of intellectual property, and the sharing ratio of development costs remain unresolved.

Positioning in Japan's Defense Policy

GCAP is at the core of the "National Defense Strategy" and "Defense Build-Up Plan" formulated by the Japanese government at the end of 2022. The plan aims to double defense spending to 2% of GDP by fiscal year 2027, and investment in GCAP is justified within that framework.

The F-2 (Mitsubishi-made, based on the US F-16) currently operated by the Japan Air Self-Defense Force is expected to be gradually retired around 2035, making the F-X from GCAP essential as its replacement. The capabilities of the next-generation fighter are critically important not only for aircraft modernization but also for enhancing stand-off defense capabilities, integrating with space, cyber, and electronic warfare, and responding to cross-domain operations.

Outlook: Focus for 2026

2026 is set to be a crucial year for GCAP in terms of both technological development and the establishment of political frameworks. Agreements on system architecture are expected to be advanced between ATLA and the UK’s DASA (Defense Science and Technology Laboratory) and the trilateral joint organization GIOCCO. There is a possibility that some official statement regarding Germany's consideration of participation may be made by the latter half of 2026.

Technically, discussions among the three countries regarding the sharing of ground test data for engines and the integrated design of radar technology are expected to intensify. Additionally, discussions on the incorporation of artificial intelligence (AI) for tactical decision-making support systems are reportedly progressing between the UK and Japan.

Conclusion

Italy's funding approval and Germany's consideration of participation indicate that GCAP is evolving beyond mere trilateral equipment co-development into a new nexus of security cooperation spanning Europe and the Indo-Pacific. Japan's technological contributions, centered around ATLA, are becoming increasingly significant within this dynamic. As of March 2026, GCAP is steadily transitioning from "planning" to "reality," and its outcomes hold the potential to reshape the East Asian security landscape over the next decade.

Key References: Reuters (February 12, 2026), The Japan Times (February 11, 2026), Official documents from the Acquisition, Technology & Logistics Agency, Wikipedia/GCAP and Mitsubishi F-X entries