It is not certain that the proposed division will go ahead. Joint Chiefs chairman Gen. Mark Milley said through a spokesperson that he had yet to consider or support the split. There is certainly pressure to do so – Trump has sacked several officials since the November election, and defying the outgoing president’s proposal could cost General Milley his seat. The Biden administration could soften or reverse the decision, however.
Whether this is a good idea or not is unclear. Split supporters have long argued that Cyber Command is draining NSA resources and creating inefficiencies with unified leadership. Opponents, however, have argued that the two are closely integrated. A separation could harm national security, Chairman of the House Armed Services Committee Adam Smith said in a letter to Milley.
The timing may not be ideal. Cyber Command is one of the major agencies grappling with the wave of cyber attacks, and a change in leadership could complicate efforts to secure systems and respond. It will not be surprising that a potential split is delayed or phased in.