Category Archives: US Armed Forces January 30

https://ift.tt/cl7CjQR https://en.wikipedia.org/wiki/Operation_End_Sweep  In 1972, during the final years of the Vietnam War, the United States laid thousands of magnetic sea mines off the coast of North Vietnam. Their purpose was simple and deadly… to block ports like Haiphong and cut off supplies by detonating when a ship’s metal hull passed nearby. Then something entirely unexpectedContinue reading “On 4 August 1972, a powerful solar storm hit the Earth.”