“The renovation of the nuclear weapon arsenal of the United States is the modernisation, refurbishment and rebuilding of the strategic nuclear weapons of the United States of America.
Facilities for researching, developing and producing nuclear weapons became dilapidated after the end of the Cold War with the Soviet Union. Following the heightening of tension after the 2014–15 Russian military intervention in Ukraine, the US planned to spend about a trillion dollars over thirty years to rectify this.This was a reversal of President Obama’s plans for further nuclear disarmament, for which he won the Nobel Peace Prize in 2009. In 2015, the Bulletin of the Atomic Scientists set their Doomsday Clock closer to midnight to highlight this development”.
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Soure of photo and text: wikipedia 16/02/2015