As we continue to strengthen our nation's transatlantic alliances and partnerships, the Office of the Under Secretary of Defense for Policy expresses profound appreciation for Spencer Boyer's exemplary service as the Deputy Assistant Secretary of Defense for European and NATO Policy from February 2021 to December 2023. His strategic leadership and unwavering commitment to international security and policy was pivotal in addressing vitally important European and NATO issues, which significantly impacted our approach to ensure global stability and security.
It is with great enthusiasm that we welcome Ms. Lisa Sawyer to the role of Deputy Assistant Secretary of Defense for European and NATO Policy. Lisa returns after a recent tenure at the White House as a special advisor on European, Russian, and defense matters to the Vice President and brings a wealth of experience and a deep understanding of international security dynamics. Her expertise and strategic vision will be invaluable. We are confident that her leadership will significantly contribute to our ongoing efforts in safeguarding national security and enhancing our transatlantic relationships.
