This is CBS Eye on the World.

Here's John Bachelorette.

The commanders, a new book from Professor Lloyd Clark,

Director of Research at the Center for Army Leadership

at the Royal Military Academy at Sanders,

as well as Professorio Research Fellow in more studies

at Humanities Research Institute University of Buckingham.

We address, once upon a time,

men born in the 19th century,

who dominated the story, the tragedy,

of the first and second war,

the Great War, and its followed the Second War in the 20th century.

And now the professor using these examples

and this detailed research is looking for the mystery of leadership,

once solved in the 19th and the 20th,

and here we are in the 21st,

always leadership.

Professor, congratulations in good evening,

your book is a treat for me,

because you put these three men,

George Patton, Bernard Montgomery,

and Erwin Rommel against each other's styles

...