If confirmed by the Senate, Milley would succeed Marine Gen. Joseph Dunford to be chairman of the Joint Chiefs of Staff. The next chairman will serve for four years, instead of two years. He has commanded units with the 10th Mountain Division and the 101st Airborne and served multiple combat tours in Iraq and Afghanistan.
The president reportedly plans to make the announcement at Saturday's annual Army-Navy football game.
"I have another one for tomorrow that I'm going to be announcing at the Army-Navy game", Trump said.
Milley who holds degrees from Princeton University and Columbia University, is known to be liked by Trump.
Dunford is a former commandant of the Marine Corps and commander of coalition troops in Afghanistan. Previous year he admonished the House Armed Services Committee for its inability to approve a defense budget, slamming it as "professional malpractice".
Brasil: trece personas murieron en intentos de asalto a bancos
Una madrugada de terror se vivió en Milagres , una pequeña ciudad del estado de Ceará , ubicado al nordeste de Brasil . Fue horrible', relató a la agencia Prensa Latina el comerciante y agricultor Mendonça de Santa Helena.
He turned command over to Lt. Gen. Sean B. MacFarland in July 2014 after he was confirmed for promotion to general and a new assignment as the commanding general of United States Army Forces Command, Fort Bragg, N.C.
Milley made the early decision to charge Bergdahl with desertion and misbehavior before the enemy.
He also served as deputy commanding general of US forces in Afghanistan.
Gen. Joseph Dunford, the chairman of the Joint Chiefs of Staff, will be done his second term in 2018.
After becoming Chief of Staff of the Army in 2015, Milley helped oversee the army's transition away from large-scale counterinsurgency campaigns in places like Iraq and Afghanistan, focusing instead on near-peer challenges from Russian Federation and China. Though Trump asked Kelly over the summer to stay on as chief of staff for two more years, the two have stopped speaking in recent days.