a job he kept after Nixon resigned and was succeeded as president by Gerald Ford

He also served as secretary of state under Nixon and Ford

(Richard Nixon, Former U.S. President)

"I know all you will want to hear from the new Secretary of State..."

Kissinger had a hand in many history-changing global events of the 1970s

including the Vietnam War, expanded ties between Israel and its Arab neighbors

the diplomatic opening of China and U.S.-Soviet arms control talks

".... it started a process which has lasted and grown, and is culminating still, through eight American presidents and four generations of Chinese leaders."

In 1973, the Nobel Peace Prize went to Kissinger and North Vietnam diplomat Le Duc Tho

for their work on withdrawing U.S. troops and agreeing a ceasefire in Vietnam

(Henry Kissinger, Former U.S. Secretary of State)

"Nothing that has happened to me in public life has moved me more than this award."

It is considered one of the most controversial in the award's history

Two members of the Nobel committee resigned over the choice

and Tho declined the prize on the grounds their work had not yet brought peace

Kissinger last worked in a presidential administration in 1977

but maintained a relationship with George W. Bush

Bush chose Kissinger to head a commission investigating the Sept. 11, 2001, attacks

(George Bush, Former U.S. President)

"Dr Kissinger and I share the same commitments. This investigation should carefully examine all the evidence."

but he stepped down due to not wanting to reveal the clients of his consulting business