"Stockpile stewardship" refers to the careful management and maintenance of a collection of weapons or military supplies to ensure they remain safe, reliable, and effective over time. Full definition
The chief mission of NIF is to provide experimental insight and data for NNSA's science - based Stockpile Stewardship Program in the area of high - energy - density physics, a scientific field of direct relevance to nuclear deterrence and national nuclear security. (pppl.gov)
He has been involved in understanding the impact of hydrodynamic instabilities on inertial confinement fusion, both direct and indirect drive, HED physics for stockpile stewardship and the role hydrodynamics play in astrophysical phenomena. (llnl.gov)
Based on the available data, we are confident that the current program of stockpile stewardship, with some modifications, can preserve the U.S. arsenal for the foreseeable future and that it isn't necessary — and may even be counterproductive — to pursue new warheads. (sciencemag.org)