# Chilean military modernization and F-5 replacement > Live situation record from CLSTR: https://clstr.news/situations/chilean-military-modernization-and-f-5-replacement > Updated: 2026-09-25T00:25:12.000Z. Sources: 6. Developments: 2. The Chilean Air Force is initiating a process to replace its aging F-5E/F Tiger III fleet following 50 years of service. During a commemoration at El Bosque Air Base, officials noted that while the aircraft have undergone modernizations, they are reaching their technical limits. Potential replacement options under evaluation include the Lockheed Martin F-35 Lightning II or expanding the existing F-16 fleet. Brigadier General Milton Zablah indicated that the retirement of the F-5s will be a gradual process to ensure financial sustainability and proper infrastructure integration. Defense Minister Fernando Barros has officially announced the move as part of a broader strategic renewal of the Chilean armed forces. This modernization effort also includes the ‘Pantera’ project to replace the Bell UH-1H helicopter fleet, upgrades to Leopard 1 tanks, and the integration of unmanned systems and electronic warfare capabilities. Additionally, the ministry is focusing on strengthening Antarctic presence through improved infrastructure at various bases and piers. ## Timeline ### 2026-09-25: Chile begins process to replace F-5 fighter jets Chile has launched a process to replace its F-5 fighter jets and has secured funding to replace its aging Bell UH-1H helicopter fleet as part of a broader military modernization program. 2 sources. https://clstr.news/cluster/chile-begins-process-to-replace-f-5-fighter-jets ### 2026-09-15: Chilean Air Force evaluates F-35 to replace aging F-5 fleet The Chilean Air Force is evaluating the F-35 and F-16 as potential replacements for its F-5 Tiger III fleet, which is approaching its technical limits after 50 years of service. 5 sources. https://clstr.news/cluster/chilean-air-force-plans-f-5-tiger-iii-retirement-by-2035 --- Cite as: Chilean military modernization and F-5 replacement. CLSTR, https://clstr.news/situations/chilean-military-modernization-and-f-5-replacement