The End of GPS Denial: How Chip-Scale Optical Clocks Are Rewiring Warfare and Daily Life

Introduction: The Race for Time Supremacy For decades, control of Positioning, Navigation, and Timing (PNT) has been one of the invisible foundations of global power. Modern militaries, financial markets, telecommunications networks, power grids, satellites, autonomous vehicles, and even smartphone applications all depend upon extremely precise timing signals. While the public associates GPS primarily with navigation,…