The initial estimate is that 800 to 1,000 service members could deploy in logistical support of Customs and Border Patrol (CBP), such as setting up tents for border authorities, the official said. They could also help construct fencing that is separate from the border wall.
These active duty forces will not act in a law enforcement capacity; instead, they will strictly provide logistical and technical support to CBP. The assignment means the deployment would not violate the Posse Comitatus Act which prohibits the use of active duty forces in a law enforcement capacity.