Robert C. O’Brien
ROBERT C. O’BRIEN was U.S. National Security Adviser from 2019 to 2021. He also served as U.S. Special Envoy for Hostage Affairs from 2018 to 2019.
ROBERT C. O’BRIEN was U.S. National Security Adviser from 2019 to 2021. He also served as U.S. Special Envoy for Hostage Affairs from 2018 to 2019.