Pentagon press secretary John Kirby said Wednesday that there was "nothing" in recent reports about Gen. Milley that caused "any concern."
Kirby said that he "couldn't speak to" the allegations made concerning Milley in the new book "Peril" which was co-written by Washington Post reporters Bob Woodward and Robert Costa.
"I think you saw a statement by the chairman's office specifically addressing this issue," he said. "What I can tell you is that it is not uncommon at all for the department to continue to review security protocols, particularly when it comes to our strategic deterrence capabilities. That we constantly take a look at the protocols and procedures to make sure that they are still relevant."
"It's also completely appropriate, and again I'm not speaking to the validity of things that are in the book, but it is completely appropriate for the chairman of the joint chiefs of staff, as the senior military advisor to both the secretary and the president, to want to see those protocols reviewed on whatever frequent basis that he wants to do that."
Kirby reiterated that he could not confirm nor deny whether the reports are true but said that he did not feel that they were concerning.
"I did not see anything, in what I've read, that would cause any concern."
In their book Woodward and Costa allege that Milley held a secret meeting at the Pentagon after the Capitol riot instructing high ranking military officials to report to him before taking orders from former President Donald Trump, who Milley was "certain" had gone into "serious mental decline."
MIT nuclear strategy expert Vipin Narang explained that anyone who ignored an order from the president and disrupted the nuclear chain of command "would be doing so illegally and risk the charge of mutiny." He said that the president has "sole authority" to order a nuclear launch.
Milley was also alleged in the book to have called his Chinese counterpart, Gen LiZuocheng of the People's Liberation Army, and tol him that he would give him advance warning in the event of military action against them.