David L. Goldfein served as the 21st Chief of Staff of the United States Air Force from July 2016 to July 2020. His leadership emphasized the importance of innovation and modernization within the Air Force, focusing on integrating advanced technologies to enhance operational capabilities. Goldfein advocated for a culture of collaboration and inclusivity, encouraging open communication among personnel. He prioritized the well-being of airmen and their families, promoting initiatives aimed at mental health and resilience, which contributed to a more supportive and effective work environment within the military.