von Braun didn't run US space program. He was in charge of rocket development. And why mention von Braun without mentioning the similar effort by the Soviets?

von Braun didn't run US space program. He was in charge of rocket development. And why mention von Braun without mentioning the similar effort by the Soviets? https://en.wikipedia.org/wiki/Operation_Osoaviakhim https://en.wikipedia.org/wiki/Operation_Osoaviakhim