This document provides a summary of key topics that will be discussed at the 2020 Munich Security Conference, including "Westlessness." It defines Westlessness as a lack of common understanding of what defines the West amid challenges to the Western liberal order from nationalism and illiberalism both within Western countries and externally. There are competing definitions of the West, with liberal democracies defining it based on shared values and others pushing a more closed definition based on ethnicity and culture that excludes immigrants and sees the West as under threat. This divide has implications for the future of Western cooperation on security and other issues.