27th Secretary of DefensE

23rd Secretary of the Army

oRder Secretary Esper's
new book now!

27th Secretary of Defense

23rd Secretary of the Army

oRder Secretary Esper's
Bestselling Memoir!

About Secretary Esper

Dr. Mark T. Esper became the 27th Secretary of Defense in July 2019 when he was confirmed in an overwhelming 90-8 vote by the U.S. Senate in rare bipartisan fashion. Esper went on to successfully lead the Defense Department through an unprecedented time in the nation’s history: from conflict with Iran, an ongoing military campaign in Afghanistan, and counter-terrorist operations in the Middle East; to open competition with China and Russia amidst a fundamental shift in the geo-strategic environment; and from the greatest civil unrest and political turmoil America has seen in decades, to a major recession and the spread of a global pandemic the world had not experienced in over 100 years, all while dealing with an unpredictable White House.

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Secretary Esper in the News

Stories, Op-Eds, Videos, and More

19 Apr, 2024
As I told Wolf Blitzer - Israel sent a clear message today: we can strike the interior of Iran if we want and have the will to do so. Last week’s defeat of Iran’s missile strikes was defense; today was deterrence. It’s overdue for the West to unite and compel better behavior from Iran or the cycle continues. Watch the Interview Here.
17 Apr, 2024
Bill Kristol and I discuss the state of the world. Watch the Interview Here.
16 Apr, 2024
“Nobody wants a wider regional war. But we arguably are on the precipice of that right now. This could get very big, very quickly,” I said to Christiane Amanpour while I criticized the Biden administration's response, arguing that Israel has to respond. Watch the Interview Here .
15 Apr, 2024
Wolf Blitzer and I discuss the ongoing Israel and Iran situation. Watch the Interview Here .
15 Apr, 2024
"My view is Israel probably has to strike back hard and try to reestablish deterrence and make sure the Iranians know that they can’t strike Israel with 300-plus missiles and drones with impunity," I said to the DC Examiner. Read the Article Here .
15 Apr, 2024
Solid piece but for one error: we moved Israel into CENTCOM at end of Trump term for the reasons this conflict is exposing. I had great support from Mike Pompeo to push this. See page 185 of "A Sacred Oath" for the how and why we did this. Read the Article Here .
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Get Secretary Esper’s Best-Selling Memoir

Former Secretary of Defense Mark T. Esper reveals the shocking details of his tumultuous tenure while serving in the Trump administration.


From June of 2019 until his firing by President Trump after the November 2020 election, Secretary Mark T. Esper led the Department of Defense through an unprecedented time in history—a period marked by growing threats and conflict abroad, a global pandemic unseen in a century, the greatest domestic unrest in two generations, and a White House seemingly bent on breaking accepted norms and conventions for political advantage. A Sacred Oath is Secretary Esper’s unvarnished and candid memoir of those extraordinary and dangerous times, and includes events and moments never before told.

Available at the following Stores and Websites


The Esper group - Consulting

Secretary Esper provides a wide range of consulting services through his firm, The Esper Group, which specializes in defense, national security, and international affairs. We ensure our clients’ success by helping them assess, understand, and shape the business, political, policy, regulatory, media, and international factors that affect their organizations. Our comprehensive strategies help our clients chart paths forward that solve their problems in a timely and efficient manner.


The Esper Group works with key government, private sector, and non-profit experts, stakeholders, and influencers to overcome obstacles and promote success. Our relationships across these domains in the U.S. and abroad helps inform, improve, and enable our solutions, while further assisting our clients in identifying and exploiting market opportunities for their technologies, products, and services.


For more information, please contact The Esper Group here.

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