The 12th of April 1945, Ordruff, Thuringia, Germany. The smell reached them before the gates did.

The men of the fourth armored division had been moving fast. They had crossed the Rine 3 weeks earlier.

They had driven through small German towns where white sheets hung from windows and old men stood at the roadside with their hands visible.

They had fought through pockets of resistance where SS rear guards held farmhouses until they were burned out or killed.

They had been in continuous motion since Normandy, and they had seen what war looked like in its most concentrated physical forms.

Nothing had prepared them for what was behind the gates at Ordruff. The camp had been a subamp of Bukinvald.

It had held political prisoners, forced laborers, Jewish deportes from across occupied Europe. When the SS guards realized American forces were approaching, they had done what SS guards did in those final weeks.

They had killed the prisoners they could not evacuate and fled. What the soldiers of the fourth armored found when they entered the camp on the 4th of April, 1945 were the bodies of those who had been shot in the preceding days.

The survivors who had not been shot and the infrastructure of what had been happening there for years.

Eight days later on April 12th, General Dwight Eisenhower came to Ordruff with General Omar Bradley and General George Patton.

They walked through the camp together. What they saw is documented in letters each of them wrote in the following days.

Eisenhower wrote that the evidence of starvation and beastiality were so overpowering that he felt it necessary to see it for himself.

He wrote that he wanted to be in a position to give firthand evidence if ever there should be a tendency to charge these allegations to propaganda.

He was thinking on April 12th 1,945 about people who would one day deny what he was seeing.

He was making himself a witness. Patton, [clears throat] who had seen the aftermath of every major engagement on the Western Front, who had walked through the carnage at the FileZ Gap and the Arden, was physically sick.

Bradley wrote that he was unprepared. Eisenhower ordered that every available American soldier in the area visit the camp.

He ordered that German civilians from the nearby town be brought to walk through it.

He ordered that journalists and photographers document everything. If you want more stories like this one, the moments inside the war that the textbooks leave out, subscribe before we go further.

It costs you nothing. And it tells us this work is worth continuing. Among the German prisoners being held in the area that week was an SS brigadefer, a rank equivalent to a brigadier general named Ernst Hoffman.

He had commanded the SS administrative district that oversaw ordrouf and several other camp facilities in Therinjia.

He was 51 years old. He had joined the SS in 1933 and had spent his career in the administrative apparatus managing the bureaucratic machinery through which prisoners were processed, categorized, assigned to labor details, and disposed of when they were no longer useful.

He was not a man who had operated the crematoria. He was not a man who had personally administered the beatings or the shootings.

He was a man who had managed the system that made those things possible and had ensured that the system functioned efficiently.

His signature appeared on requisition orders, on personnel assignments, on the administrative documentation through which Ordroof had been run as an institution.

He had been captured at a roadblock near Gotha 4 days after the liberation of Ordroof, still in his SS uniform, carrying documents that identified him and his role.

He had not attempted to destroy the documents. This was in retrospect a miscalculation. He had believed in those final days that the administrative nature of his work would protect him, that the distance between his desk and the actual deaths would matter.

The American officer assigned to conduct his preliminary interrogation was a captain named Thomas Aldrich, 29 years old, from Dayton, Ohio.

Aldrich had been a high school history teacher before the war. He had been drafted in 1942.

Trained as an intelligence officer and assigned to the Third Army’s interrogation section. He was not a richy boy.

He had no personal history with the places or the people in the documents he worked with.

He was a man from Ohio who had studied history and now found himself inside it.

Aldrich had visited Ordruff two days before the interrogation. He had gone because his commanding officer had followed Eisenhower’s order to ensure that American soldiers in the area saw the camp.

He had walked through it for 2 hours. He had seen what was there. He had submitted his required report to his commanding officer and had said nothing further about it.

He sat across the table from Hoffman on the 14th of April 1945 with a folder of documents that included Hoffman’s administrative records, the operational logs of the Ordroof Camp facility, and the preliminary forensic assessment of the camp’s conditions prepared by the Army’s medical officers in the first days after liberation.

Hoffman entered the room with the bearing of a man who had decided on his approach.

He was courteous. He answered preliminary questions without hesitation. He confirmed his name, rank, and the general nature of his responsibilities.

He was not defiant. He was not combative. He had clearly concluded that cooperation within certain limits was his best available strategy.

The limits became apparent when Aldrich began to ask specific questions about the camp’s operations, about the documented death rates, about the conditions the medical officers had described, about the specific administrative decisions that appeared in the documents before him.

Huffman’s answers were consistent and rehearsed. He had been responsible for administrative coordination. He had implemented directives received from higher authority.

He had operated within the framework of orders and regulations that governed the camp system.

He had not made policy. He had administered it. He said in German, the phrase that Aldrich’s interpreter translated with the flat precision of a man who had translated it many times before.

I was following orders. Aldrich looked at the document in front of him for a moment.

Then he looked up. What he said next was not in the official interrogation report that he submitted the following morning.

The report was professional and precise and covered the intelligence value of the session. What Aldrich said in that room was preserved in a letter he wrote to his wife 3 days later, a letter that was cleared by military sensors and that his daughter later donated to the archives at the National World War II Museum.

He wrote that he had looked at the man across the table and he had thought about the two hours he had spent at Ordruff, not about the details which he did not describe in the letter and never described publicly in his life.

About the fact that everything he had seen at Ordruff had required administration, had required paperwork, had required someone to manage the supply chains and the personnel assignments and the logistical details without which none of it could have functioned, had required specifically the kind of careful institutional work that the man across the table had spent 12 years performing.

He wrote that he had said to the interpreter, “Tell him that I’ve been to Ordruff and that I understand exactly what following orders means in this context.

Tell him that following orders is not a fact about what happened. It is a description of how it happened.

Tell him those are different things.” Then he had asked his next question. Hoffman did not respond immediately to this.

By Aldrich’s account in the letter. He sat for a moment and then he answered the next question.

He answered every subsequent question in the session. He did not again use the phrase, “I was following orders.”

The session lasted 4 hours. The intelligence was forwarded. The report was filed. What Aldrich had understood and what he had communicated in that room without any particular plan to communicate it was something that the Nuremberg tribunals would articulate in formal legal language 7 months later.

That the existence of an order does not transfer the moral or legal responsibility for its execution.

That a man who builds and maintains the administrative infrastructure of systematic murder is not absolved of responsibility for the murder by the fact that someone else issued the original directive.

This was not a settled principle in April 1945. The defense of superior orders had been used in previous military tribunals with varying results.

The German defense teams at Nuremberg would argue it extensively. The tribunal’s rejection of it as a complete defense while allowing it as a possible mitigating factor established one of the foundational principles of modern international law.

Aldrich was not a lawyer. He was a history teacher from Dayton who had been to Ordroof.

What he said in that room was not a legal argument. It was something more immediate than that.

It was the observation of a man who had seen what the orders produced directed at the man who had ensured the orders could be executed.

The distinction between those two things, what happened and how it happened, was the distinction that Hoffman had been counting on to protect him.

He had believed that the how, the administrative distance, the paperwork, the institutional framework would function as a kind of insulation from the what, that a man who filed requisition forms was a different category of person from a man who committed violence.

Aldrich’s response had been to decline to accept that category distinction, not with a speech, with a sentence and then a question.

Ernst Hoffman was transferred to the Allied prisoner processing system and eventually to the Nuremberg subsequent proceedings.

He was tried in 1947 as part of the SSN police case. The documents from his administrative tenure at Ordroof were entered into evidence.

The defense offered was the one he had been rehearsing. Superior orders, administrative responsibility, distance from the operational reality.

The tribunal convicted him. He was sentenced to 20 years imprisonment. He was released in 1954 under the commutation program.

He died in West Germany in 1963. Thomas Aldrich was discharged from the army in September 1945 and returned to Dayton.

He went back to teaching high school history. He taught for 27 years. He never spoke publicly about his wartime service except once in 1971 when a student asked him what the most important thing he had learned in the war was.

He said that the most important thing he had learned was the difference between describing how something happened and explaining why it was acceptable.

He said that people who had done terrible things almost always had an accurate account of how the decisions had been made and who had given the orders.

The how was not the problem. The problem was that the how was being offered as an answer to a different question.

The student by several accounts from former classmates did not entirely understand what he meant.

Most of them did not ask him to explain further. They moved on to the next topic.

He taught for 27 years and then he retired and he died in Dayton in 1989 at the age of 73.

His service records and the letter to his wife are in the archive. The phrase I was following orders was used as a defense at Nuremberg by virtually every defendant.

It was used in varying forms by SS camp personnel at the Dhau trials, the Bukinva trial, the Mohousen trial and dozens of subsequent proceedings.

It was used because it had a certain logical structure. Orders existed. Individuals operated within hierarchies.

The directives had come from above. All of this was true. What the tribunals established in the language that Aldrich had expressed without legal framing in a farmhouse interrogation room in April 1945 was that the truth of how something happened does not constitute a justification for what happened.

That participating in a system that produces mass murder makes you responsible for the mass murder regardless of where in the system you sat.

This principle was new as formal law in 1945 as a moral intuition. It was not new at all.

It was what Aldrich had expressed when he told Hoffman that following orders was not a fact about what happened but a description of how it happened.

Two different things. The broader context of April 1,945 is essential to understanding why this interrogation mattered beyond its immediate intelligence value.

In those final weeks of the European War, American forces were encountering the physical evidence of what the Nazi system had produced at a rate and scale that had not been anticipated by most of the soldiers doing the encountering.

The camps had been a known fact in general terms. Allied intelligence had been aware of the concentration camp system since the early years of the war and specific information about the extermination operations in Poland had been available to senior Allied commanders since at least 1942.

But there is a difference between knowing something exists and standing inside it. The liberation of camp after camp in the spring of 1,945 produced in the American soldiers who experienced it a particular kind of knowledge, not new information about what the Nazi system had done, but a direct physical confrontation with what that information meant in human terms.

Ordruff was the first. Bukinvald followed 8 days later. Dhau on April 29th. Bergen Bellson liberated by British forces on April 15th.

Each liberation produced the same pattern. Soldiers who had been in combat for months who had developed the professional tolerance for violence that sustained combat requires.

Encountering something for which that tolerance provided no preparation. The bodies, the survivors, the documentation of how the system had operated.

Thomas Aldrich had been to Ordruff when he sat across from Huffman 2 days later.

He was not working from secondhand information. He was working from the specific located physical reality of what he had seen.

When he said that he understood what following orders meant in this context, he was not making an abstract argument.

He was describing a connection between the administrative work in the folder in front of him and the reality he had walked through.

Huffman had spent 12 years creating distance between himself and that reality. The distance was institutional.

The paperwork, the requisition forms, the administrative procedures that turned human beings into categories and categories into logistics.

He had been very good at maintaining that distance. His entire defense rested on it.

Aldrich refused to accept the distance, not because he was angry, though he may have been, but because he had been to Ordroof, and the distance was no longer abstractly maintainable.

The bodies were not abstract. The survivors were not abstract. The careful administrative documentation that linked those realities to the desk where Hoffman had worked was in the folder on the table between them.

This is the specific thing that the American forces who liberated the camps in the spring of 1,945 brought to the subsequent legal proceedings that would become the Nuremberg trials.

Not just evidence though, they provided enormous amounts of evidence, but witnesses, people who could say, “I was there.

I saw what the orders produced. I sat across the table from men who administered the system that produced it.

The distance that those men relied upon to protect themselves was not a distance I was willing to grant them because I had been to Ordroof and at Ordruff the distance did not exist.

Aldrich went home and taught history for 27 years. He taught the causes of the Second World War, the rise of fascism, the mechanisms by which ordinary institutional life could be organized in the service of systematic murder.

He taught these things to teenagers in Dayton, Ohio, who had not been born when the events he was describing took place.

He did not tell them about the interrogation. He did not tell them about Hoffman or the phrase or the letter.

He taught the history. And he let the history make its own argument. Once in 1971, a student asked him what the most important thing he had learned in the war was.

He gave the answer about the difference between how and why. The student did not entirely understand.

Most of them did not ask him to elaborate. The letter is in the archive.

The distinction he made in that room in April 1945 is in the legal record of the Nuremberg proceedings expressed in the formal language of international law.

The principle that emerged from those proceedings that following orders does not transfer responsibility is now foundational to the laws of armed conflict to the international criminal court to the body of international humanitarian law that governs how states and armies are held accountable for what they do.

It did not start at Nuremberg. It started in rooms like the one where Thomas Aldrich sat across from Ernst Hoffman and said that following orders was not a fact about what happened but a description of how it happened.

A history teacher from Dayton understood the difference. The tribunal put it into law. There is one more thing worth saying about Thomas Aldrich and the room in April 1945.

He was 29 years old. He had been a history teacher for two years before he was drafted.

He had studied the First World War, the mechanisms of nationalism and institutional violence, the ways in which ordinary bureaucratic systems could be turned toward extraordinary ends.

He had taught these things to students who were bored and engaged in equal measure as students always are.

And then he had been put inside the history he had been teaching. He had walked through Ordruff.

He had sat across from the man who had managed the administrative machinery of a place like OrduF.

And in that room, without preparation, and without any particular intention of making a legal or philosophical argument, he had said something that cut through the defense that Hoffman had been rehearsing.

The defense was logical. Orders existed. Hierarchies existed. The directives had come from above. All of this was true.

What Aldrich had refused to do was treat the truth of how something happened as an answer to the question of whether it was acceptable.

He had said in effect, “I know how it happened. I’ve seen what it produced.

The how does not explain the what. Those are different questions.” Hoffman had sat quietly after that and answered the questions.

The intelligence was forwarded. The report was filed. Aldrich went back to his work and eventually went home and taught history for 27 years to students who mostly did not ask him about the war.

The letter is in the archive. It describes 2 hours at Ordroof and 4 hours in a room with a man who had helped run it.

It describes in the plain language of a man writing to his wife what he said and what the man across the table did not say in response.

It does not describe what it cost to sit in that room. Some things are not in the letters either.

Now, I want to ask you something. Thomas Aldrich was not a lawyer, not a philosopher, not a judge.

He was a history teacher from Ohio who had spent 2 hours at Ordroof and then sat across a table from a man who helped run it.

If you had been in that room and the man across the table said he was just following orders, what would you have said?

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