Who currently serves as the Chairman of the Joint Chiefs of Staff?

General Mark Milley serves as the Chairman of the Joint Chiefs of Staff. He was appointed to this position in September 2019 and continues to hold it as of the latest updates in 2023. The role of the Chairman involves being the highest-ranking officer in the U.S. Armed Forces, advising the President, the Secretary of Defense, and the National Security Council on military issues.

The other individuals mentioned have previously served in this prestigious position: General Joseph Dunford held the title from 2015 to 2019, and General Martin Dempsey served from 2011 to 2015. General Daniel Caine does not have a notable record that relates him to this specific role, making it clear that he is not the current Chairman. Therefore, understanding the timeline and current occupants of military leadership roles clarifies why General Mark Milley is the correct choice in this context.