Retired Admiral William H. McRaven is a former commander of the United States Special Operations Command. He served in the Persian Gulf War, as well as the war in Iraq and Afghanistan. He fought in Operation Desert Shield and Desert Storm, and has won three Defense Distinguished Service Medals, Defense Superior Service Medals, two Legion of Merit medals and two Bronze Stars. In other words, the guy’s got swagger. He can afford to walk softly.

Last week, though, he wasn’t so softly. He took the rare step of voicing a complaint against his commander-in-chief — in the New York Times, no less. The mere act of his publicly criticizing a superior is newsworthy enough.

But what he penned was so poetic and damning, every news outlet in America should have picked it up. If the first investigation into the president drowned in 448 pages of investigative paperwork by Robert Mueller, McRaven’s file is a one-page note. And as we head toward the road of impeachment, every American should read it.

As I said, the press was remiss enough in letting the letter fly largely under the radar. And the NYT didn’t help the cause, hiding it behind a paywall. But we here at the HB found a workaround, and will run the letter. We invite other outlets to follow suit. Man up and speak out.

Last week I attended two memorable events that reminded me why we care so very much about this nation and also why our future may be in peril.

The first was a change of command ceremony for a storied Army unit in which one general officer passed authority to another. The second event was an annual gala for the Office of Strategic Services (O.S.S.) Society that recognizes past and present members of the intelligence and Special Operations community for their heroism and sacrifice to the nation. What struck me was the stark contrast between the words and deeds heralded at those events — and the words and deeds emanating from the White House.

On the parade field at Fort Bragg, N.C., where tens of thousands of soldiers have marched either preparing to go to war or returning from it, the two generals, highly decorated, impeccably dressed, clear eyed and strong of character, were humbled by the moment.

They understood the awesome responsibility that the nation had placed on their shoulders. They understood that they had an obligation to serve their soldiers and their soldiers’ families. They believed in the American values for which they had been fighting for the past three decades. They had faith that these values were worth sacrificing everything for — including, if necessary, their lives.

Having served with both officers for the past 20 years, I know that they personified all that is good and decent and honorable about the American military with genuineness of their humility, their uncompromising integrity, their willingness to sacrifice all for a worthy cause, and the pride they had in their soldiers.

Later that week, at the O.S.S. Society dinner, there were films and testimonials to the valor of the men and women who had fought in Europe and the Pacific during World War II. We also celebrated the 75th anniversary of D-Day, recognizing those brave Americans and allies who sacrificed so much to fight Nazism and fascism. We were reminded that the Greatest Generation went to war because it believed that we were the good guys — that wherever there was oppression, tyranny or despotism, America would be there. We would be there because freedom mattered. We would be there because the world needed us and if not us, then who?

Also that evening we recognized the incredible sacrifice of a new generation of Americans: an Army Special Forces warrant officer who had been wounded three times, the most recent injury costing him his left leg above the knee. He was still in uniform and still serving. There was an intelligence officer, who embodied the remarkable traits of those men and women who had served in the O.S.S. And a retired Marine general, whose 40 years of service demonstrated all that was honorable about the Corps and public service.

But the most poignant recognition that evening was for a young female sailor who had been killed in Syria serving alongside our allies in the fight against ISIS. Her husband, a former Army Green Beret, accepted the award on her behalf. Like so many that came before her, she had answered the nation’s call and willingly put her life in harm’s way.

For everyone who ever served in uniform, or in the intelligence community, for those diplomats who voice the nation’s principles, for the first responders, for the tellers of truth and the millions of American citizens who were raised believing in American values — you would have seen your reflection in the faces of those we honored last week.

But, beneath the outward sense of hope and duty that I witnessed at these two events, there was an underlying current of frustration, humiliation, anger and fear that echoed across the sidelines. The America that they believed in was under attack, not from without, but from within.

These men and women, of all political persuasions, have seen the assaults on our institutions: on the intelligence and law enforcement community, the State Department and the press. They have seen our leaders stand beside despots and strongmen, preferring their government narrative to our own. They have seen us abandon our allies and have heard the shouts of betrayal from the battlefield. As I stood on the parade field at Fort Bragg, one retired four-star general, grabbed my arm, shook me and shouted, “I don’t like the Democrats, but Trump is destroying the Republic!”

Those words echoed with me throughout the week. It is easy to destroy an organization if you have no appreciation for what makes that organization great. We are not the most powerful nation in the world because of our aircraft carriers, our economy, or our seat at the United Nations Security Council. We are the most powerful nation in the world because we try to be the good guys. We are the most powerful nation in the world because our ideals of universal freedom and equality have been backed up by our belief that we were champions of justice, the protectors of the less fortunate.

But, if we don’t care about our values, if we don’t care about duty and honor, if we don’t help the weak and stand up against oppression and injustice — what will happen to the Kurds, the Iraqis, the Afghans, the Syrians, the Rohingyas, the South Sudanese and the millions of people under the boot of tyranny or left abandoned by their failing states?

If our promises are meaningless, how will our allies ever trust us? If we can’t have faith in our nation’s principles, why would the men and women of this nation join the military? And if they don’t join, who will protect us? If we are not the champions of the good and the right, then who will follow us? And if no one follows us — where will the world end up?

President Trump seems to believe that these qualities are unimportant or show weakness. He is wrong. These are the virtues that have sustained this nation for the past 243 years. If we hope to continue to lead the world and inspire a new generation of young men and women to our cause, then we must embrace these values now more than ever.