In 1953, the United States conducted a historic nuclear test known as “Upshot-Knothole Grable” at the Nevada Test Site. It marked the first and only time the U.S. fired a live nuclear artillery shell, demonstrating the potential of atomic battlefield weapons. The 15-kiloton shell was launched from a specially designed M65 “Atomic Cannon” and detonated roughly seven miles away, producing a massive mushroom cloud. While showcasing Cold War military power, the test also raised concerns about the pr

8.1K views · 179 reactions | "As the only nation on earth to have used nuclear weapons in warfare, the United States bears a heavy responsibility to exercise proper stewardship of nuclear weapons and to lead in working with other nations to reduce nuclear dangers." -- Secretary of State Rex Tillerson at the UN Security Council Session on Nuclear Non-Proliferation on September 21, 2017 #UNGA #USAatUNGA | U.S. Department of State | Facebook