It wasn't very effective, but, at the end of the war, both the U.S. and U.S.S.R. had captured the technology and the scientists that had developed it and began using them for their own projects.
No era muy efectivo, pero, al final de la guerra, tanto EE.UU. como la U.R.S.S. se hicieron con la tecnología y científicos  que lo desarrollaron y empezaron a usarlos  para sus propios proyectos.