The nation’s senior-most navy officer didn’t bypass his civilian leaders when he known as his Chinese language counterpart final October and January, his workplace mentioned on Wednesday, as Common Mark Milley, the chairman of the Joint Chiefs of Employees, moved to restrict the injury from a e book that alleges that he secretly known as China twice over issues that his boss on the time, President Donald J. Trump, would possibly spark a conflict with Beijing.

Common Milley’s spokesman, Col. Dave Butler, mentioned in a press release that “all calls from the Chairman to his counterparts, together with these reported, are staffed, coordinated and communicated with the Division of Protection and the interagency,” in a reference to the federal government nationwide safety forms.

“Common Milley continues to behave and advise inside his authority within the lawful custom of civilian management of the navy and his oath to the Structure,” the assertion mentioned.

Common Milley’s “calls with the Chinese language and others in October and January,” Colonel Butler mentioned, “had been in step with these duties and tasks conveying reassurance with the intention to keep strategic stability.”

Colonel Butler didn’t communicate to the specifics of the dialog, which, in line with “Peril,” the brand new e book by the Washington Publish reporters Bob Woodward and Robert Costa, included reassurances that Mr. Trump had no plans to assault China as a part of an effort to stay in energy and that the US was not collapsing.

“Issues could look unsteady,” Common Milley informed Gen. Li Zuocheng of China on Jan. 8, two days after Mr. Trump’s supporters stormed the Capitol to attempt to cease the certification of his election loss, within the second of two such calls. “However that’s the character of democracy, Common Li. We’re 100% regular. Every thing’s high quality. However democracy could be sloppy generally.”

But regardless of these assurances, the e book asserts that Common Milley was so involved about Mr. Trump that he convened a gathering with high commanders later that day to remind them of the procedures for launching a nuclear weapon and that he wanted to be concerned in such a call.

The Pentagon press secretary, John F. Kirby, mentioned Wednesday that there was nothing unsuitable with that, calling it “utterly applicable for the chairman of the Joint Chiefs of Employees, because the senior navy adviser to the president, to wish to see the protocols reviewed.” He added that “I see nothing in what I’ve learn that will trigger any concern.”

President Biden on Wednesday mentioned he had “nice confidence in Common Milley.”

“The president has full confidence in his management, his patriotism, and his constancy to our Structure,” Jen Psaki, the White Home press secretary, mentioned throughout a press briefing on Wednesday.

However some Republican leaders took to Twitter to specific their fury.

“I can be declining this invite to dine with Tried Coup Chief and Famend Important Race Theorist Mark Milley,” Consultant Matt Gaetz of Florida wrote, posting a photograph of an invite from the Nationwide Protection College to a dinner and reception in October the place the final is the featured speaker. It’s unlikely the final prolonged that invite personally; he took Mr. Gaetz to activity in June throughout a congressional listening to, after Mr. Gaetz criticized navy establishments for educating about systemic racism.

As a substitute of demurring to the congressman, as navy leaders usually do throughout congressional hearings, Common Milley retorted that he had learn Mao, Marx and Lenin and that “doesn’t make me a communist.”

Nonetheless, the very last thing the Pentagon needs is the looks that navy leaders have gone round their civilian counterparts, even throughout the tumultuous final months of the Trump presidency, when Mr. Trump made clear in a collection of conferences, officers mentioned, that he was not averse to utilizing the navy to assist him stay in energy.

Much like different media studies and books launched since Mr. Trump left workplace, “Peril” particulars how his presidency basically collapsed in his closing months in workplace, significantly after his election loss and the beginning of his marketing campaign to disclaim the outcomes. Prime aides — together with Common Milley, Protection Secretary Mark Esper and Lawyer Common William P. Barr — turned satisfied that they wanted to take drastic measures to cease him from trampling on American democracy or setting off a world battle, and Common Milley thought that Mr. Trump had declined mentally within the aftermath of the election, in line with the e book.

A senior Protection official mentioned that Mr. Esper, within the weeks earlier than he was unceremoniously fired by Mr. Trump, additionally made calls of reassurance to international counterparts apprehensive about Mr. Trump.

Zolan Kanno-Youngs contributed reporting from Washington