"What we did agree on was to restart communications," Brzezinski added. "My father [former Jimmy Carter national security adviser Zbigniew Brzezinski] often spoke with world leaders with whom he ...

President Jimmy Carter's national security adviser, Zbigniew Brzezinski, has died at the age of 89. For the past four decades, he has remained an influential voice in U.S. foreign policy.

His father, Poland-born Zbigniew Brzezinski, was former President Jimmy Carter's influential Cold War-era national security adviser, who advocated a tough stance countering what was then the ...