Wolf became fluent in Russian , as all of his training there was in Russian .
During his training for a Mir expedition , he lived and trained in Star City , Russia at the Yuri Gagarin Cosmonaut Training Center .
Wolf became fluent in Russia , as all of his training there was in Russia .
During his training for a Mir expedition , he lived and trained in Star City , Russia at the Yuri Gagarin Cosmonaut Training Center .