In a precarious world, the power of information becomes the key to military advantage. When the United States suddenly announced the shutdown of the Global Positioning System (GPS), the whole world fell into panic. Countless countries became blind and helpless in an instant, while only two countries seemed unmoved, as if they had already known about this huge change that was about to happen.Missile strike capability will be limitedIntroduction to the importance of GPS system in missile technology The success of global missile technology depends on accurate target positioning and navigation capabilities. The GPS system enables missiles to accurately fly to the target by providing high-precision three-dimensional positioning information. If the GPS system is turned off, it will lead to huge challenges for missile technology.Limitations of turning off GPS on missile strike capabilityReduced navigation and positioning accuracy: Turning off GPS will deprive missiles of the signal source required for accurate positioning. The missile cannot accurately calculate its own position and may deviate from the intended target. This will lead to reduced missile strike capability and misjudgment. Hit time delay: Turning off GPS will increase the time difference between missile selection and identification of targets. Missiles need to rely on other navigation systems or traditional methods for target tracking, which will cause a time delay in the attack and give the target more time to defend.Decreased robustness and confrontation capabilities: After GPS is turned off, missiles will be more susceptible to interference, such as electromagnetic interference and interference from anti-missile systems. Missiles are likely to lose their confrontation capabilities and cannot effectively avoid defensive measures, making attacks more complicated and risky.Possible alternativesInertial navigation system: Inertial navigation systems can provide missile speed, position and heading information, but their cumulative error is large. Inertial navigation systems usually need to be combined with other navigation systems to improve the positioning accuracy of missiles.Ground-based radar and atmospheric detection systems: Ground-based radar and atmospheric detection systems can provide environmental information during the flight of missiles to help missiles identify and select targets. These systems can be used as auxiliary navigation methods to mitigate the impact of GPS shutdown. Satellite communication system: Satellite communication systems can be used as backup communication means to ensure that missiles stay in touch with the command center and obtain real-time target information. This will increase the flexibility and accuracy of missile strikes.China's Beidou navigation system: China's Beidou navigation system is one of the largest regional navigation systems in the world. The system consists of a series of satellites that cover China and its surrounding areas. The technical strength of the BeiDou system is mainly reflected in the following aspects:Number of satellites and coverage: The BeiDou system consists of a large network of satellites, ensuring that its coverage is wide enough to meet the positioning and navigation needs of most users.High-precision positioning technology: The BeiDou system provides high-precision positioning services with a positioning error within a few meters, far exceeding the performance of traditional GPS systems.Global application and cooperation: China actively promotes the application of the BeiDou system worldwide and has established partnerships with other countries and regions to provide more extensive and reliable navigation services.Russia's GLONASS navigation system:GLONASS navigation system is a regional navigation system independently developed by Russia. Its technical strength is reflected in the following aspects:Number of satellites and performance: The GLONASS system consists of a group of satellites that provide positioning and navigation services covering Russia and its surrounding areas. The system has a sufficient number of satellites and has high-precision positioning and navigation capabilities.Technological innovation and development: Russia continues to improve the performance and stability of the GLONASS system and continuously improves navigation technology through investment in research and development.National Strategic Priorities: The GLONASS system is considered an important national strategic project of Russia. The government guarantees its continued development and provides it with sufficient resources and support.The world should not rely on a single navigation system. Although the current situation is worrying, it can also prompt countries to work more actively in technological competition. Only through joint efforts can the continued stability and security of the global navigation system be ensured. We look forward to more pleasant surprises in the future, so that we can remain optimistic about the progress of science and technology.