What do you mean by that?
He taught them discipline and military strategies used by other armies in order to help them become more professional.
NASA HQ are in Houston, Texas. Famous quote "Houston we have a problem" from Apollo 13 relates to it.
In his old age he became a communist and during the cold war it was just too tough to be a communist in the US. He went to Ghana after it became the first African country. DuBios has worked for African independence all his life, and was invited to enjoy it by Kwame Nkrumah, his old friend, and Ghana's first president.