The United States has long been a leader in space exploration and utilization. In recent years, a series of Space Policy Directives (SPDs) issued by the executive branch have sought to update and refine U.S. space policy to address new challenges and opportunities in the space domain. These directives cover a wide range of topics, from human space exploration to commercial space regulations to space traffic management. Together, they represent a comprehensive effort to position the United States for continued leadership in space in the 21st century.