Core Viewpoint - The Dutch Secretary of Defense, Gijs Tuinman, suggested that the F-35 fighter jet could be "jailbroken" like an iPhone to reduce dependency on American software [1][3]. Group 1: F-35 Fighter Jet Overview - The F-35 Lightning II, developed by Lockheed Martin, is a single-seat, single-engine fifth-generation fighter jet with a maximum level flight speed of 1.6 Mach (approximately 1,700 km/h) [1]. - It is currently the only fifth-generation carrier-based fighter jet in large-scale service worldwide, designed for various missions through advanced stealth capabilities and sensor fusion [1]. Group 2: Software Independence and Modification - Tuinman indicated that theoretically, it is possible to modify the F-35's operating system through third-party means to achieve software independence, although he did not disclose specific technical details or implementation plans [3]. - The operational logic of the F-35 resembles that of a flying supercomputer, relying on thousands of components sourced from the U.S. and fully dependent on Lockheed Martin's cloud infrastructure for its combat capabilities [3]. Group 3: Challenges of Modification - The F-35's software updates, logistics, and mission data files, which provide threat recognition capabilities, must be transmitted through U.S. networks [3]. - Despite Tuinman's comparison of the modification process to "jailbreaking an iPhone," the actual difficulty of such an operation is extremely high, as the F-35's system runs over 8 million lines of code, all of which are encrypted to the highest military standards [3].