US Secretary of State Henry Kissinger gives a speech at his arrival at the Orly airport, France on September 6, 1976. AFP

Former Secretary of State Henry Kissinger, the diplomat with the thick glasses and gravelly voice who dominated foreign policy as the United States extricated itself from Vietnam and broke down barriers with China, died Wednesday, his consulting firm said. He was 100.

With his gruff yet commanding presence and behind-the-scenes manipulation of power, Kissinger exerted uncommon influence on global affairs under Presidents Richard Nixon and Gerald Ford, earning both vilification and the Nobel Peace Prize. Decades later, his name still provoked impassioned debate over foreign policy landmarks long past.

Kissinger’s power grew during the turmoil of Watergate, when the politically attuned diplomat assumed a role akin to co-president to the weakened Nixon.

"No doubt my vanity was piqued,” Kissinger later wrote of his expanding influence. "But the dominant emotion was a premonition of catastrophe.”

A Jew who fled Nazi Germany with his family in his teens, Kissinger in his later years cultivated the reputation of respected statesman, giving speeches, offering advice to Republicans and Democrats alike and managing a global consulting business. He turned up in President Donald Trump’s White House on multiple occasions. But Nixon-era documents and tapes, as they trickled out over the years, brought revelations - many in Kissinger’s own words - that sometimes cast him in a harsh light.

Never without his detractors, Kissinger after he left government was dogged by critics who argued that he should be called to account for his policies on Southeast Asia and support of repressive regimes in Latin America.

For eight restless years - first as national security adviser, later as secretary of state, and for a time in the middle holding both titles - Kissinger ranged across the breadth of major foreign policy issues. He conducted the first "shuttle diplomacy” in the quest for Middle East peace. He used secret channels to pursue ties between the United States and China, ending decades of isolation and mutual hostility.

He initiated the Paris negotiations that ultimately provided a face-saving means - a "decent interval,” he called it - to get the United States out of a costly war in Vietnam. Two years later, Saigon fell to the communists.

And he pursued a policy of detente with the Soviet Union that led to arms control agreements and raised the possibility that the tensions of the Cold War and its nuclear threat did not have to last forever.

At age 99, he was still out on tour for his book on leadership. Asked in July 2022 interview with ABC whether he wished he could take back any of his decisions, Kissinger demurred, saying: "I’ve been thinking about these problems all my life. It’s my hobby as well as my occupation. And so the recommendations I made were the best of which I was then capable.”

Associated Press