10% of US electricity in 80-90' came from uranium recycled from Soviet warheads reduced as part of disarmament agreements.
Megatons To Megawatts: Russian Warheads Fuel U.S. Power Plants : NPR
https://www.npr.org/2013/12/11/250007526/megatons-to-megawatts-russian-warheads-fuel-u-s-power-plants