From 2012 – 2014, BG Zwack served as the United States Senior Defense Official and Attache to the Russian Federation. By interacting with Russians at multiple levels since 1989, including defense, security, academia, policy, veterans, and private citizens, BG Zwack developed a unique hands-on perspective on Russia and Eurasian security affairs during a turbulent period that included the recent strife in Crimea and Eastern Ukraine.

Brigadier General Peter B. Zwack enlisted in the US Army in 1980 and received his commission via Officer Candidate School (OCS). He subsequently served 34 years as a Military Intelligence and Eurasian Foreign Area Officer serving in diverse and challenging duty locations including West Germany, South Korea, Kosovo, Afghanistan, and Russia.

Inducted into the OCS Hall of Fame in 2015 , BG Zwack is a recipient of the Distinguished Service Medal, Legion of Merit , Defense Superior Service Medal, the Bronze Star, and many other awards and citations including the Afghan Service Medal and NATO/Kosovo Medal. He was also honored as the Joint Chief's of Staff "Action Officer of the Year" for 1999. He proudly wears the Ranger Tab and Airborne Wings.

Senior Russia-Eurasia Research Fellow at National Defense University (Institute for National Strategic Studies) at the National Defense University.

BG Zwack regularly consults and lectures within the defense department, private industry, think tanks, and academic institutions on contemporary Russian and Eurasian security issues, and leadership lessons.

BG Zwack speaks Russian, German, Italian, and some French.