Global nuclear weapons inventories, 1945–2010

来源: 于 2021-11-04 22:39:46 [旧帖] [给我悄悄话] 本文已被阅读：次

https://www.tandfonline.com/doi/pdf/10.2968/066004008

year United States RUSSIA

1950   299                5

1951   438                25