Washington: Former U.S. national security adviser Zbigniew Brzezinski, who established himself in the Carter administration as a hardliner on foreign policy, died on Friday, his family said.
He was 89.
Brzezinski's daughter Mika, a host on MSNBC's "Morning Joe" show, said on social media that her father died peacefully. She did not give the cause of his death.
"He was known to his friends as Zbig, to his grandchildren as Chief and to his wife as the enduring love of her life. I just knew him as the most inspiring, loving and devoted father any girl could ever have," she said on Instagram.
Brzezinski, the son of a Polish diplomat, was national security adviser for all four years of Jimmy Carter's presidency.
He helped Carter contend with several major international events, including the Iranian revolution that overthrew the Shah, the taking of 52 Americans as hostages in Tehran and a failed rescue mission, and the Soviet invasion of Afghanistan.
Brzezinski, plucked by Carter from the academic world, saw many of the Soviet Union's foreign policy moves as evidence it could not be trusted.
That placed him at odds with two of Carter's closest advisers: secretary of state Cyrus Vance, who pushed for a Strategic Arms Limitation Treaty (SALT-2) with Moscow, and defense secretary Harold Brown, who urged a U.S.-Soviet accord to curb conventional forces in Europe. When Soviet troops invaded Afghanistan, Brzezinski strongly backed the arming of Afghan rebels in response.
His hardline stance on U.S.-Soviet relations led Pravda, the Soviet Communist Party newspaper, to denounce him as a "foe of detente". President Carter said in a statement that Brzezinski was brilliant, dedicated and loyal.
"Rosalynn (Carter's wife) and I are saddened by the death of Zbigniew Brzezinski. He was an important part of our lives for more than four decades and was a superb public servant," Carter said.
Former President Barack Obama called Brzezinski "an accomplished public servant, a powerful intellect, and a passionate advocate for American leadership.
"His influence spanned several decades, and I was one of several Presidents who benefited from his wisdom and counsel. You always knew where Zbig stood, and his ideas and advocacy helped shape decades of American national security policy."
While he was skeptical of Soviet motives and objectives, Brzezinski nurtured a diplomatic friendship between the United States and China, which culminated in a trip to Beijing in June 1978.
Six months later Carter announced a decision to re-establish diplomatic ties with China starting in 1979.
Brzezinski's view of the Soviet Union may have been coloured by his childhood experiences.
Born in Warsaw, Poland, on March 28, 1928, he was taken as a youngster to Canada where his father served as a diplomat.
When the communists took over Poland at the end of World War II, the family remained in the West.
Brzezinski received a doctorate from Harvard University in 1953 and became an American citizen in 1958.
He voiced support for U.S. policy in Vietnam in the mid-1960s, and served on the policy planning staff of President Lyndon Johnson's State Department in that era.
Along with David Rockefeller, chairman of the Chase Manhattan Bank, Brzezinski helped to found the Trilateral Commission, a private group that promoted closer ties between North America, Western Europe and Japan.
Linas Linkevicius, Lithuanian foreign minister, paid tribute to Brzezinski during a global security forum in Slovakia, describing him as a strategist, a great statesman and friend of the Baltic States.
Carter had known Brzezinski before his election to the White House in 1976 and asked him to leave Columbia University, where the effects of Soviet communism had been the focus of much of Brzezinski's work.
Having regular access to Carter gave him vast influence in Washington, which for a time led to recurring reports that he and Vance were rivals for the president's ear.
The rivalry lasted until Vance resigned after the aborted mission to rescue American hostages in Iran in April 1980.
Brzezinski also took part in negotiations toward the Egypt-Israel Peace Treaty in 1979, which was seen by many as the major achievement of Carter's presidency.
In the arms control field, Brzezinski, despite his lifelong antipathy to Soviet communism, joined defence secretary Brown in spearheading the unsuccessful drive to win Senate approval of the 1979 SALT-2 accord with Moscow. A
lthough it never cleared the Senate as a result of the Soviet invasion of Afghanistan in December 1979, SALT-2 remained unofficially in effect even beyond its original five-year lifespan.
After the Carter years, Brzezinski became a consultant on international affairs and a senior adviser for the Georgetown Center for Strategic and International Studies in Washington.
He also taught American foreign policy at Johns Hopkins University.
He frequently wrote opinion articles for newspapers and published several books, including "Strategic Vision: America and the Crisis of Global Power" in 2012.
Vice president George H.W. Bush, trying to build up his own image as a tough foreign policy realist, considered it a coup to secure Brzezinski's support in his 1988 presidential campaign.
Brzezinski was at times critical of the foreign policies of both Bill Clinton and George W. Bush.
He was sharply critical of Bush's "war on terror" and the 2003 invasion of Iraq.
In August 2007 Brzezinski endorsed Democratic presidential candidate Barack Obama, saying that Obama "recognses that the challenge is a new face, a new sense of direction, a new definition of America's role in the world".