Mutual Trust Alone: What The Church Says When The Arms Race Reaches Orbit

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On Monday, the Secretary of the Air Force said out loud what the Pentagon had spent years phrasing around: the United States has weapons in orbit. He chose the sentence on purpose. He then declined to say how many weapons, what they do, or whether they have ever been tested, because telling you would weaken the deterrent. By Tuesday, Beijing and Moscow had answered. The Church has been writing about this exact arrangement, a peace that rests on what the other side fears you might have, since the first Cold War. Her verdict has not softened, and Pope Leo XIV sharpened it this year.

The News Story

Air Force Secretary Troy Meink told a defense conference on September 14 that the United States has weapons stationed in Earth orbit, the first time a Pentagon official has said so directly. Speaking in the opening keynote at the Air and Space Forces Association’s Air, Space and Cyber Conference in National Harbor, Maryland, Meink said, “This is why the Space Force now has on-orbit space control weapons capable of defending the joint force against hostile adversary action.”

He offered almost no specifics. In a question-and-answer session afterward, Meink said the acknowledgment was intentional and his phrasing “very well thought out.” He then declined to tell reporters how many systems are in orbit, when they were launched, whether they have been tested, or whether they operate by physical impact or by jamming. “Talking about the details of what we’re doing would actually not benefit that deterrence,” he said.

The Space Force defines “space control” as employing kinetic and non-kinetic means against an adversary’s capabilities, and a service spokesperson told ABC News those capabilities “can be employed for offensive and defensive purposes at the direction of combatant commands.” Victoria Samson of the Secure World Foundation, a nonprofit that tracks military activity in space, told Al Jazeera that the word choice is what changed. Earlier American statements described “systems with capabilities.” This is the first time an official has said that a weapon designed as one sits in orbit. Bleddyn Bowen, who studies astropolitics at Durham University, told BBC Radio 4 he expects an electronic warfare or radio-jamming platform, since smashing a satellite scatters debris at orbital speed.

Both governments named in Pentagon threat assessments answered within a day. Chinese Foreign Ministry spokesman Guo Jiakun opposed “the weaponization of outer space, turning it into a battlefield, as well as an arms race there,” and urged Washington to stop preparing for war in orbit. Kremlin spokesman Dmitry Peskov said Russia is “counting on broad international consolidation to continue working towards the complete demilitarization of space.” Research groups including the Center for Strategic and International Studies have documented direct-ascent anti-satellite missiles, jamming, spoofing and cyber tools held by both China and Russia. India has demonstrated its own anti-satellite capability.

The 1967 Outer Space Treaty, signed by the United States, Russia and China, bans nuclear weapons and other weapons of mass destruction from orbit and prohibits military bases on the moon. Its text contains no clear prohibition on conventional arms in Earth orbit.

Meink’s remarks came alongside program news. He said the Space-Based Interceptor effort, part of the Golden Dome missile defense architecture, moved from initial contract to flight-ready hardware in under a year, with an initial capability possible by 2028. The Space Force awarded SpaceX a $4.2 billion contract in May to begin building a constellation that tracks moving airborne targets, and Meink said the first of those satellites will launch this month. In December, President Trump signed an executive order giving the Space Force an attack mission in space alongside its defensive one.[1]

A space station in orbit above the curve of the Earth
A spacecraft in Earth orbit. The Air Force Secretary says American weapons now share this orbit, and that describing them would weaken the deterrent. Licensed via Adobe Stock, ID 597850910.

Catholic Social Teaching Analysis

The Sentence He Chose And The Ones He Withheld

Look at the shape of what Meink did. He confirmed the weapon and hid everything about it, and he gave the reason in one line: “Talking about the details of what we’re doing would actually not benefit that deterrence.” So the weapon’s usefulness sits in the gap between what Beijing knows and what Beijing fears. Whether it rams satellites or jams them, whether there are 2 or 200, whether it has ever worked: all of that stays dark, because the darkness is the point. A weapon no one can see is deterred by the size of the imagination on the other side.

I want to stay on that one thread, because the Church has a name for it and a judgment on it. The name is deterrence. The judgment is older than the Space Force, and four popes have repeated it.

What The Church Says About Deterrence

The Compendium of the Social Doctrine of the Church, which organizes the Church’s teaching into one text, starts with a goal: “general, balanced and controlled disarmament.” It then applies what it calls the principle of sufficiency, “by virtue of which each State may possess only the means necessary for its legitimate defense,” a rule that binds “both by States that buy arms and by those that produce and furnish them.”[2] Notice what that principle requires in practice. Somebody has to measure the arsenal against the need. A weapon announced but undescribed can’t be measured by anyone, whether in Beijing or in the Kansas household whose taxes paid for it. The secrecy that makes the deterrent work is the same secrecy that puts it beyond the reach of the only test the Church allows.

Then the Compendium turns to deterrence itself, quoting the Second Vatican Council word for word: “The accumulation of arms strikes many as a paradoxically suitable way of deterring potential adversaries from war. They see it as the most effective means of ensuring peace among nations. This method of deterrence gives rise to strong moral reservations. The arms race does not ensure peace. Far from eliminating the causes of war, it risks aggravating them.”[3] The Catechism carries the same paragraph and adds a sentence that reads like Tuesday’s wire copy: “Over-armament multiplies reasons for conflict and increases the danger of escalation.”[4]

That is exactly what the 24 hours after Meink’s keynote looked like. He said the word “weapons.” Guo Jiakun answered with “arms race.” Peskov answered with “demilitarization.” Both of those governments hold anti-satellite missiles and jammers of their own, so no one in this exchange has clean hands, and the Church’s teaching lands on Beijing and Moscow as squarely as on Washington. But the pattern is the one the Council described. One announcement, two responses, and a race that everybody claims the other side started.

John XXIII And The Balance Of Arms

Saint John XXIII saw this in 1963, six months after the Cuban missile crisis, and wrote it into Pacem in Terris. “There is a common belief,” he said, “that under modern conditions peace cannot be assured except on the basis of an equal balance of armaments.” The result is mechanical: “if one country increases its military strength, others are immediately roused by a competitive spirit to augment their own supply of armaments.”[5] He then named the cost that never shows up in a program budget. “People are living in the grip of constant fear,” and while it is hard to believe anyone would start the war deliberately, “the conflagration could be started by some chance and unforeseen circumstance.”[6]

Read that last line next to Bleddyn Bowen’s remark about debris. A weapon that physically strikes a satellite scatters fragments at orbital speed, and those fragments don’t check the flag on the next satellite they hit. Orbit is the one battlefield where a single “chance and unforeseen circumstance” can take out the navigation and communications satellites of every nation at once, including the nation that fired. John XXIII was writing about atomic testing in the atmosphere. The physics of orbit makes his warning more literal than it was in 1963.

And then he wrote the sentence this post is named for. Lasting peace among nations, he said, “cannot consist in the possession of an equal supply of armaments but only in mutual trust.”[7] Mutual trust alone. The whole architecture Meink described on Monday, a weapon whose power depends on being unknowable, is built to produce the opposite of trust, on purpose, as a feature. That is the moral problem, and it exists before anyone asks whether the weapon is kinetic or whether the Outer Space Treaty technically permits it.

Leo XIV Names The Belief

Pope Leo XIV, writing in Magnifica Humanitas in May, says the Church’s earlier hope for détente “has been left behind,” and he identifies what replaced it: “the widespread yet erroneous belief that nuclear deterrence is an indispensable prerequisite for security.” That belief, he writes, “has also contributed to a new arms race, which is hard to control and accompanied by the gradual dismantling of nuclear reduction agreements.”[8] His subject is nuclear weapons, and the Space Force says nothing about nuclear weapons in orbit. But the Pope is describing a belief, and the belief transfers without modification. Meink’s one-line defense of secrecy is that belief stated as policy.

Leo goes further and describes the mood of the moment: “a troubling revival of war as an instrument of international politics,” in which “escalating tensions and reciprocal threats are becoming almost commonplace.”[9] Reciprocal threats. A keynote in Maryland on Monday, a foreign ministry briefing in Beijing on Tuesday. He also names who profits. The link between “economic interests, the military apparatus and political decisions,” he writes, produces “an ‘armed nation,’ in which war appears as a natural extension of politics, and the arms market becomes an autonomous driving force behind military decisions.”[10] Set that beside the program news in the same speech: a $4.2 billion contract, an interceptor program moving from paper to flight hardware in under a year, an executive order giving the Space Force an attack mission. The market for orbit is open, and Leo XIV’s point is that once it opens, it starts steering.

What does the Church ask for instead? Something specific. Leo writes that it is “imperative to establish a shared framework” at the international level “to curb the technological arms race.”[11] The Compendium says deterrence policies “must be replaced with concrete measures of disarmament based on dialogue and multilateral negotiations.”[12] John XXIII asked for “a general agreement” on disarmament “with an effective system of mutual control.”[13] Three popes, one request, and the Outer Space Treaty is the place it could be answered. That treaty bans the bomb in orbit and says nothing about the jammer or the interceptor. It was written in 1967 for the weapons of 1967. The gap Meink stepped through on Monday is the gap the Church would have every signatory close, with verification, before the next country steps through it too.

What This Asks Of Us

I’m aware of how this reads to the parishes around Offutt Air Force Base, where Strategic Command sits and where many of the people in the pews carry a clearance. Deterrence is their job, and the Church does not doubt their good faith. The Catechism grants public authorities “the right and duty to regulate” the production and sale of arms, precisely because arms “affect the common good of nations and of the international community.”[14] Regulation and sufficiency are the Church’s own words, and a nation’s right to defend itself remains intact.

What the Church refuses is the belief that safety comes from a stockpile the other side can’t see. It refused it in 1963 with the missiles in Cuba barely gone. It refused it at the Council, in the Catechism, in the Compendium, and again this May. A Catholic can support a strong defense and still say, plainly, that a weapon designed to be feared because it is unknown is a weapon designed to keep the world afraid, and that fear is the soil an arms race grows in. Ask the question John XXIII asked. What would it take for the United States and China to trust each other about what is in orbit? Disclosure, and a treaty that names conventional weapons, with inspectors who have the standing to check it. All of it is harder than a keynote, and all of it is what the Church means by peace.

Meink said his sentence was “very well thought out.” I believe him. The Church’s sentence was thought out too, and it has held for 63 years: lasting peace consists in mutual trust alone.


This story turns on disarmament and the principle of sufficiency: the Church’s teaching that the arms race does not ensure peace, and that lasting peace among nations consists in mutual trust alone.

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Footnotes

  1. “Meink Reveals Space Force Has ‘On-Orbit Space Control Weapons’,” Air & Space Forces Magazine, September 14, 2026, airandspaceforces.com; “What Are ‘Space Weapons’, Which US Says It Has Deployed into Orbit?,” Al Jazeera, September 15, 2026, aljazeera.com; “Pentagon Reveals Secret Space Weapons Already in Orbit, Won’t Say What They Do,” Fox News, September 15, 2026, foxnews.com; “Air Force Secretary Acknowledges the US Has Weapons in Space,” ABC News, September 15, 2026, abcnews.com; “The U.S. Has Weapons in Space,” Scientific American, September 15, 2026, scientificamerican.com; “China and Russia Issue Warnings after Air Force Secretary Confirms US Has Weapons in Space,” Straight Arrow News, September 15, 2026, san.com; “US Reveals Weapons Are Now in Orbit as Russia, China Develop Space Threats,” NewsNation, accessed September 16, 2026, newsnationnow.com.
  2. Pontifical Council for Justice and Peace, Compendium of the Social Doctrine of the Church (Vatican City: Libreria Editrice Vaticana, 2004), no. 508, vatican.va.
  3. Pontifical Council for Justice and Peace, Compendium of the Social Doctrine of the Church, no. 508, quoting Second Vatican Council, Gaudium et Spes, no. 81.
  4. Catechism of the Catholic Church, 2nd ed. (Vatican City: Libreria Editrice Vaticana, 1997), no. 2315, vatican.va.
  5. Pope John XXIII, Pacem in Terris (Vatican City: Libreria Editrice Vaticana, 1963), no. 110, vatican.va.
  6. Pope John XXIII, Pacem in Terris, no. 111.
  7. Pope John XXIII, Pacem in Terris, no. 113.
  8. Pope Leo XIV, Magnifica Humanitas (Vatican City: Libreria Editrice Vaticana, 2026), no. 194, vatican.va.
  9. Pope Leo XIV, Magnifica Humanitas, no. 190.
  10. Pope Leo XIV, Magnifica Humanitas, no. 193.
  11. Pope Leo XIV, Magnifica Humanitas, no. 200.
  12. Pontifical Council for Justice and Peace, Compendium of the Social Doctrine of the Church, no. 508.
  13. Pope John XXIII, Pacem in Terris, no. 112.
  14. Catechism of the Catholic Church, no. 2316.

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Deacon Dan DeLuca is a permanent deacon ordained for the Archdiocese of Omaha in 2023. He is completing a Master's degree in theology and preparing to begin doctoral studies; his areas of study are Scripture, liturgy, and ecclesiology. Everything published here is cited so you can check every claim.

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