Henry Kissinger Is Worried About ‘Disequilibrium’

At 99 years old, Henry Kissinger has just published his 19th book, “Leadership: Six Studies in World Strategy.” It is an analysis of the vision and historical achievements of an idiosyncratic pantheon of post-World War II leaders: Konrad Adenauer, Charles DeGaulle, Richard Nixon, Anwar Sadat, Lee Kuan-Yew and Margaret Thatcher.

In the 1950s, “before I was involved in politics,” Mr. Kissinger tells me in his midtown Manhattan office on a steamy day in July, “my plan was to write a book about the making of peace and the ending of peace in the 19th century, starting with the Congress of Vienna, and that turned into a book, and then I had about a third of a book written on Bismarck, and it was going to end with the outbreak of World War I.” The new book, he says, “is a kind of continuation. It’s not just a contemporary reflection.”