The Last Teacher

Jon Bradburn, a former air traffic controller at England's Manchester Airport, is picked up by aliens from the planet Zel. After interrogation, he is persuaded to become a "teacher of men."
It's become obvious to the Zellians that humankind is nearing the point where self-destruction is imminent, consuming Earth in atomic warfare.
Jon is the last in a long line of "teachers" provided by the Zellians, being "prepared and modified" mentally and physically for the role he will have to play. He is endowed with superhuman strength and intelligence, as well as the promise of longevity beyond that of all men.
Accompanied by a young female Zellian (only eighty years old) named Lana, who will be Jon's mentor and companion until the stability of Earth is assured, Jon sets out to educate the men of all nations how to live in peace. But first all nuclear weapons must be disabled or destroyed.
As the teacher, Jon is in contact with the most powerful leaders in the world, particularly Davis Cooper, president of the United States, who proves to be a staunch ally. Their aim is to bring peace, prosperity, and long life to all humankind. Is their dream possible?

Educated in Scotland, George L. Fearns served in the Royal Navy. Now residing in England, he is a member of the Worcestershire Provincial Grand Lodge of Freemasons.
Publisher's website: http://sbprabooks.com/GeorgeLFearns