WASHINGTON (AP) — The head of the U.S. Space Force is moving ahead with plans to pull talent from Air National Guard units to help build up the still new military service — but several governors remain opposed and argue it tramples on their rights to retain control over their state units.

Overall, the plan would affect only 578 service members across six states and the Air National Guard headquarters and augment the Space Force without creating a separate Space Force National Guard — something the service has said would not be efficient because it would be so small.

The Space Force was established by President Donald Trump in late 2019, during his first term. In the years since, the Air Force has transferred its space missions into the now 5-year-old military branch — except for the 578 positions still contained in the Air National Guard, which is part of the Air Force. In the 2025 defense bill, Congress mandated that those positions move over to the Space Force as well.

The transferred service members would be a part-time force like they are now, just serving under the Space Force instead of their state units.

Last month, the National Governors Association said the transfers violate their right to retain control over their state units.

The affected personnel include 33 from Alaska, 126 from California, 119 from Colorado, 75 from Florida, 130 from Hawaii, 69 from Ohio and 26 from Air National Guard headquarters .