Mark Erwin has joined St. John's faculty as the director of the Cadet Corps Leadership Program for the fall of 2019. He was most recently employed at the Department of Veterans Affairs in Washington, DC, where he worked to enhance the transition process for soldiers and their families as they leave active duty. Prior to that position, Erwin worked as a special assistant to the secretary of Veterans Affairs for two years and as a program examiner at the White House's Office of Management and Budget (OMB) for three and a half years.
Before joining the federal government as a presidential management fellow in 2012, Erwin served on active duty as an Army officer for six years. He led a scout platoon of 34 soldiers in Baghdad and conducted more than 100 combat patrols in support of Operation Iraqi Freedom, earning the Bronze Star Medal and Combat Action Badge during a 15-month deployment. Erwin also served as an operations officer in Fort Hood, TX, Fort Polk, LA, and Salt Lake City, UT, where he managed staff functions for a 600-soldier battalion.
A central New York native, Mark graduated from Christian Brothers Academy in 2001 before attending West Point, where he played collegiate golf and received his commission in 2005. He holds a master’s degree in public administration from the Maxwell School of Citizenship and Public Affairs at Syracuse University.
Mark is a major in the Army Reserve and an assistant professor in the Department of Behavioral Science and Leadership at West Point. He lives in Fairfax, VA, with his wife and children.

Captain Mike Chapman

Mike Chapman joined St. John’s Cadet Corps Leadership Program faculty in the fall of 2019. Most recently, he was employed at the Defense Security Cooperation Agency in Arlington, VA, where he worked to develop and implement the assessment, monitoring and evaluation processes for Department of Defense’s international security cooperation activities in Africa. Prior to that position, Chapman worked for a variety of international organizations focusing on African affairs, including the Africa Bureau, Office of Security Affairs at the Department of State, Lutheran World Relief and Development Alternatives. He also served as a Peace Corps volunteer in the Islamic Republic of Mauritania and as a housing reconstruction crew chief with the Episcopal Diocese of Louisiana, Office of Disaster Response, in New Orleans following Hurricane Katrina.
As an infantry officer and Africa foreign area officer in the Marine Corps Reserve, Chapman served as a foreign security force advisor to the Peacekeeping Operations Training Center in Krtsanisi, Georgia, and as a European command regional planner at the Marine Corps Security Cooperation Group in Fort Story, VA. He is currently assigned to the Marine Corps Advisor Company at Joint Base Anacostia-Bolling in Washington, DC.
A DC native and graduate of Davidson College, where he also played football, Chapman currently resides in Washington, DC, with his family.