The U.S. Space Force will include uniformed service members drawn from the Air Force, Navy and Army — but it is not expected to include the National Reconnaissance Office mission, according an internal draft of the Pentagon's plan to create a sixth branch of the military.

Defense One reviewed a copy of the 13-page document, which will be further developed in coming months before the Pentagon sends it to Congress in February along with its 2020 budget request. This early draft provides a glimpse into a 21st-century approach to creating a new service branch, an endeavor not undertaken since 1947. Among other things, it reveals divergent views among senior Pentagon officials about how to structure it.