Robert Gates to Write ‘Duty,’ About His Time as Defense Secretary

Robert M. Gates, the former defense secretary under President George W. Bush and President Obama, will tell the story of his tenure in those administrations in a new memoir, his publisher said on Monday.

“Duty,” to be released by Knopf, chronicles Mr. Gates’s nearly five years managing wars in Iraq and Afghanistan and his “political war with Congress” every day he was in office, Mr. Gates said in a statement.

The book is also about “the dramatic contrast between my public respect, bipartisanship and calm, and my private frustration, disgust and anger,” said Mr. Gates, who left the Obama administration in 2011.

Knopf said it would release the book in January 2014.