The R&D budget for defense in Japan is projected to experience a steady decline over the five-year forecast period from 2024 to 2028. Starting at 1.44% of total GBARD in 2024, it reduces incrementally each year, reaching 1.09% by 2028. The consistent year-on-year decline suggests a focus on optimizing efficiencies within existing defense R&D frameworks rather than expanding them. Over the two years prior to 2024, variations have occurred, with a downward trend apparent in the 2025 and 2026 forecasts. The five-year CAGR reflects this downward movement, indicating an average annual decrease.
Future trends to watch include potential shifts in geopolitical tensions, which may result in policy adjustments affecting budget allocations. Additionally, technological advancements and defense strategy evolution could prompt reassessment of R&D priorities. Monitoring these factors is crucial for anticipating significant changes in the defense R&D landscape.