Jim Mattis

James Mattis
Born	James Norman Mattis 9/8/1950
Birthplace	Pullman, Washington, U.S.
Nationality	American
Occupation	Retired military officer, former U.S. Secretary of Defense
Known for	26th United States Secretary of Defense, Commander of United States Central Command
Education	Central Washington University (B.A.)
Awards	Defense Distinguished Service Medal, Bronze Star Medal, Meritorious Service Medal

James Norman Mattis (born September 8, 1950) is a retired United States Marine Corps four-star general who served as the 26th United States Secretary of Defense from January 2017 to January 2019 under President Donald Trump. Known by the nicknames "Warrior Monk" and "Mad Dog"—the latter of which he reportedly disliked—Mattis built a distinguished military career spanning more than four decades, commanding forces during the Gulf War, the War in Afghanistan, and the Iraq War. His career culminated in a series of major commands: he led the United States Joint Forces Command from 2007 to 2010, served concurrently as NATO's Supreme Allied Commander Transformation, and commanded United States Central Command from 2010 to 2013. A figure renowned among military peers for his intellectualism and extensive reading habits, Mattis became one of the most prominent American military leaders of the post-9/11 era. His tenure as Secretary of Defense was marked by efforts to reinforce traditional alliances and by growing policy disagreements with the Trump administration, ultimately leading to his resignation in December 2018 over the decision to withdraw American troops from Syria.

Early Life

James Norman Mattis was born on September 8, 1950, in Pullman, Washington. He grew up in the Pacific Northwest, spending formative years in the Richland, Washington, area in the Tri-Cities region of the state. From an early age, Mattis developed an avid interest in reading, a trait that would become a defining characteristic throughout his military career and earn him the nickname "Warrior Monk." He reportedly maintained a personal library of thousands of books on military history, strategy, and leadership, and was known throughout the Marine Corps for distributing reading lists to the officers and Marines under his command.

Mattis's upbringing in the Columbia Basin of Washington state shaped his character and values. He continued to identify Richland as his home throughout his career and into retirement. His intellectual curiosity and disciplined temperament, evident from his youth, would later distinguish him among his fellow officers and contribute to his rise through the ranks of the Marine Corps.

Education

Mattis attended Central Washington University in Ellensburg, Washington, where he earned his bachelor's degree. While at the university, he participated in the Naval Reserve Officers' Training Corps (NROTC), through which he received his commission as an officer in the United States Marine Corps upon graduation. The NROTC program provided Mattis with both his academic foundation and his entry into military service, setting the stage for a career that would span more than four decades. Throughout his military career, Mattis continued to emphasize the importance of education and self-study, becoming one of the most well-read senior officers in the modern American military establishment.

Career

Early Military Career

Mattis was commissioned in the United States Marine Corps in 1969 through the NROTC program at Central Washington University. He began his service during the latter years of the Vietnam War era and steadily advanced through the ranks of the Marine Corps over the following decades. As a career infantry officer, Mattis served in a variety of command and staff positions that prepared him for senior leadership roles.

Mattis first saw significant combat during the Gulf War in 1991, where he commanded forces as part of the American-led coalition to liberate Kuwait from Iraqi occupation. His performance in the Gulf War helped establish his reputation as a capable and aggressive combat commander. He continued to serve in various assignments throughout the 1990s, steadily building his credentials as both a tactician and a strategic thinker.

Post-9/11 Commands: Afghanistan and Iraq

Following the September 11, 2001, terrorist attacks, Mattis played a prominent role in the American military response. He commanded forces during the initial stages of the War in Afghanistan and subsequently during the Iraq War, where he gained widespread recognition for his leadership in combat operations.

During the Iraq War, Mattis commanded the 1st Marine Division during the invasion of Iraq in 2003, leading his Marines in the push from Kuwait to Baghdad. His leadership during this campaign drew both praise and scrutiny. In one frequently cited incident, Mattis made blunt remarks about combat that attracted media attention and controversy, reflecting a forthright communication style that became a hallmark of his public persona.

Mattis's approach to counterinsurgency emphasized the importance of cultural understanding, relationship-building with local populations, and the integration of military force with broader political objectives. He was known for stressing to his Marines the importance of restraint alongside decisive action, often articulating the principle that the excessive use of force could create more enemies than it eliminated. His reading lists for Marines, widely circulated within the military community and eventually published publicly, included works on the history and culture of the regions where American forces were deployed.

Throughout his service in Iraq and Afghanistan, Mattis advanced to the rank of lieutenant general and eventually to full general (four stars), reflecting the high regard in which he was held by senior military and civilian leadership.

Commander, United States Joint Forces Command and NATO

In November 2007, Mattis was appointed as the fifth Commander of the United States Joint Forces Command (USJFCOM), a position he held until August 2010. Concurrently, he served as NATO's Supreme Allied Commander Transformation from November 2007 to September 2008. In these dual roles, Mattis was responsible for overseeing joint force training, integration, and transformation efforts across the American military and the NATO alliance. His tenure at USJFCOM reflected his emphasis on preparing military forces for the complex, irregular warfare challenges that had come to define the post-9/11 security environment.

Commander, United States Central Command

On August 11, 2010, Mattis assumed command of the United States Central Command (CENTCOM), succeeding General David Petraeus. CENTCOM is responsible for American military operations across the Middle East, Central Asia, and parts of South Asia, encompassing the ongoing conflicts in Afghanistan and Iraq. Mattis served as CENTCOM commander under President Barack Obama, with Admiral Bob Harward serving as his deputy commander.

During his tenure at CENTCOM, Mattis oversaw military operations in Afghanistan during a critical period of the war and managed the American military presence in the broader Middle East. He was a vocal proponent of maintaining a strong military posture in the region and frequently expressed concern about the threat posed by Iran to regional stability.

Mattis's tenure at CENTCOM ended on March 22, 2013, when he was succeeded by General Lloyd Austin. Reports indicated that Mattis's departure was partly due to policy disagreements with the Obama administration, particularly regarding the approach to Iran and the broader Middle East strategy. Following his retirement from the Marine Corps after 44 years of active service, Mattis transitioned to the private sector.

Post-Military Career and Private Sector

After retiring from the Marine Corps in 2013, Mattis took on several private sector roles. Among the most notable and later controversial of these was his service on the board of directors of Theranos, the health technology company founded by Elizabeth Holmes. Theranos was later revealed to have engaged in widespread fraud regarding its blood-testing technology, and Holmes was ultimately convicted of fraud. Mattis's association with the company became a subject of public discussion, although his board service predated the public exposure of the company's deceptive practices.

Secretary of Defense

Nomination and Confirmation

On December 1, 2016, President-elect Donald Trump announced his intention to nominate Mattis as Secretary of Defense. Because Mattis had been retired from the military for fewer than seven years—the minimum period required by federal law before a former military officer can serve as Secretary of Defense—Congress was required to pass a waiver to permit his appointment. The waiver was approved, and the United States Senate confirmed Mattis on January 20, 2017, the same day Trump was inaugurated as president.

Mattis's nomination was widely noted for the bipartisan support it received. His deputies during his tenure as Secretary of Defense included Robert O. Work, who continued in the role from the Obama administration, and Patrick M. Shanahan, who succeeded Work and would later serve as acting Secretary of Defense after Mattis's departure.

Tenure

As Secretary of Defense, Mattis prioritized strengthening American alliances and maintaining a rules-based international order. He affirmed the United States' commitment to the defense of South Korea during the 2017 North Korea crisis, a period of heightened tensions over North Korea's accelerating nuclear weapons and ballistic missile programs. Mattis traveled extensively to allied nations to reinforce partnership commitments, positioning himself as a stabilizing figure within the Trump administration's national security apparatus.

Mattis was an opponent of proposed collaboration with China and Russia, stressing what he characterized as their threat to the American-led world order. Under his leadership, the Department of Defense released the 2018 National Defense Strategy, which identified great-power competition—particularly with China and Russia—as the central challenge facing the American military, marking a shift from the counterterrorism focus that had dominated defense policy since 2001.

On the issue of climate change, Mattis stood apart from much of the Trump administration. He acknowledged the security implications of climate change and opposed budget cuts that would hamper the military's ability to monitor its impacts. This position placed him at odds with the administration's broader skepticism toward climate science and its withdrawal from the Paris Agreement.

Mattis also reportedly disagreed with the Trump administration's decision to withdraw from the Iran nuclear deal (the Joint Comprehensive Plan of Action), although he ultimately deferred to the president's authority on the matter. According to reporting by The Hill, Mattis also reportedly dissuaded Trump from attempting to assassinate Bashar al-Assad, the president of Syria, reflecting his role as a moderating influence within the administration on certain military and foreign policy decisions.

Resignation

On December 20, 2018, Mattis submitted his letter of resignation to President Trump after failing to convince the president to reconsider his decision to withdraw all American troops from Syria. In his resignation letter, Mattis emphasized the importance of treating allies with respect and being clear-eyed about adversaries, in what was widely interpreted as an implicit rebuke of Trump's foreign policy approach. He also expressed disagreement with the planned withdrawal of troops from Afghanistan.

Mattis initially set his departure date for the end of February 2019, to allow time for an orderly transition. However, after his resignation letter generated significant media coverage and was interpreted as a sharp critique of the president, Trump abruptly accelerated Mattis's departure date to January 1, 2019. Trump subsequently stated that he had essentially fired Mattis. Patrick M. Shanahan assumed the role of acting Secretary of Defense upon Mattis's departure.

Post-Government Activities

Following his departure from the Pentagon, Mattis returned to private life, maintaining a relatively low public profile compared to some other former Trump administration officials. He became affiliated with the Hoover Institution at Stanford University, where he has participated in discussions on national security, civic duty, and American leadership.

In May 2025, Mattis spoke at Stanford University about the need to preserve American moral ideals and called for a renewal of civic duty and U.S. leadership on the global stage. He has continued to speak and write on matters of national security, alliances, and the importance of civic knowledge. In September 2025, Mattis co-authored an article in Foreign Affairs arguing against the abandonment of AUKUS, the trilateral security partnership between the United States, the United Kingdom, and Australia.

Mattis has also continued to make public appearances, including at events such as the Monticello Founders Day celebration, where he was scheduled to appear alongside philanthropist David M. Rubenstein.

Personal Life

Mattis has never married and has no children, a fact that contributed to his "Warrior Monk" nickname within the military. He has been described as deeply devoted to the Marine Corps and to the study of military history and strategy, with his personal life largely defined by his service and his intellectual pursuits. Mattis has continued to reside in the Richland, Washington, area following his retirement from government service.

Mattis has been known for his direct and sometimes colorful manner of speaking, producing numerous widely quoted remarks that became known informally as "Mattisisms." While the nickname "Mad Dog" gained currency in the media, Mattis himself was reported to prefer the call sign "Chaos," which also served as an acronym for "Colonel Has An Outstanding Solution."

Mattis identifies as politically independent.

Recognition

Throughout his military career and public service, Mattis received numerous military decorations and awards. His awards include the Defense Distinguished Service Medal, the Bronze Star Medal, and the Meritorious Service Medal, among others.

Mattis's intellectual reputation within the Marine Corps was recognized through his promotion to the highest levels of command, including roles that are typically reserved for officers considered among the most capable in the armed forces. His reading lists for Marines became widely distributed beyond the military and are considered an influential contribution to professional military education.

His confirmation as Secretary of Defense with broad bipartisan Senate support reflected the esteem in which he was held across political lines at the time of his nomination. His resignation letter in December 2018, with its emphasis on the importance of alliances and its implicit criticism of the administration's foreign policy direction, received extensive coverage and was described by commentators as a significant moment in American civil-military relations.

In his post-government career, Mattis has been sought as a speaker and commentator on matters of national security and civic responsibility. His 2025 appearances at Stanford University and other venues have focused on themes of civic duty, the preservation of democratic institutions, and the importance of American global leadership.

Legacy

Mattis is regarded as one of the most prominent American military leaders of the early 21st century. His career spanned a transformative period in American military history, encompassing the end of the Cold War, the Gulf War, and the prolonged conflicts in Afghanistan and Iraq that followed the September 11 attacks. His emphasis on intellectual preparation, cultural awareness, and the study of military history set him apart among senior officers of his generation and influenced a broader movement within the American military toward greater emphasis on professional reading and education.

As Secretary of Defense, Mattis's tenure is noted for its focus on alliance management, great-power competition, and the 2018 National Defense Strategy, which reoriented American defense priorities toward competition with China and Russia. His resignation over the Syria withdrawal decision became one of the most high-profile departures from the Trump administration and was seen as a statement about the role of alliances and the importance of strategic consistency in American foreign policy.

Mattis's post-government engagement, including his writings in Foreign Affairs on AUKUS and his public speeches on civic duty, suggest a continued commitment to influencing American security policy and public discourse. His association with the Theranos board, while a subject of public discussion, has not overshadowed his broader military and government career in historical assessments.

His direct, quotable communication style contributed to a public persona that transcended the typical profile of a senior military officer, making him one of the most recognizable American generals of his era. Whether through his widely circulated reading lists, his blunt assessments of strategic challenges, or his principled resignation from the Cabinet, Mattis left a distinctive mark on both the American military and the broader national security establishment.