<prompt> Pedzisa mutsara unotevera: Kuedzwa kwebhomba rokutanga renyukireya kwakaitwa neSoviet Union muna August 1949 kwakaitika kare kupfuura zvaitarisirwa nevaAmerica, uye McMahon akakurudzira pakarepo kuti kugadzirwa kwezvombo zvenyukireya kweUnited States kuwedzere zvikuru. Uyezve, mukati memwedzi inoverengeka yakatevera pakanga pane kurukurirano huru mukati mehurumende yeU.S., uto, uye nzanga dzesayenzi pamusoro pokuti kupfuurira here nokugadzirwa kwebhomba rehydrogen rine simba zvikuru zvikuru, panguva iyeyo raizivikanwa seSuper. McMahon akanga achitsigira zvakasimba kupfuurira neSuper, uye akataura kudaro zvikuru munhevedzano yetsamba dzaakanyorera Mutungamiri Truman. Seneta akaramba nharo dzakavakirwa patsika dzinopesana nebhomba rehydrogen rakavakirwa pakuti rakanyanya kuparadza kupfuura zvombo zvakapfuura, achibvunza kuti Kupi kusiyanisa kwakakodzera kwetsika pakati pe Hondo Yenyika II yekurwisa mabhomba eHamburg kwemazuva akawanda neusiku,  <response>: kuputika kwebhomba raToyko, uye kuputika kwebhomba reatomu paHiroshima, uye kurwisa kupi nokupi kwomunguva yemberi nechero rudzi rwetekinoroji iyo yakaparira kuurawa kukuru. 