Franz Halder

The diary is not incidental to Halder; it is the clearest evidence of what he was. Nobody required him to keep it. Through the collapse of Poland, the fall of France and the opening of the largest land invasion in history, he sat down each evening and recorded what had been said and by whom, in shorthand, with the tone of a man reconciling an account. It is dry, granular, often petty, and enormously valuable precisely because it was not composed for an audience — which is why David Stahel and a generation of Barbarossa scholars use it as the check against which the generals' postwar memoirs are measured.

The same introverted sensing governs his professional method. Halder was the institutional memory of the German General Staff — the Moltke tradition, the staff-college procedure, the standardized order format, the meticulous handling of railway and supply tables. He was better at that than almost anyone alive, which is why the Wehrmacht's first campaigns ran with such uncanny smoothness, and also why the Manstein plan reached him as an irritant rather than an opportunity: a proposal that violated everything precedent said about armor and terrain, submitted by a subordinate outside the proper channel of dissent.

Halder's auxiliary Te shows in how he fought: never on principle, always on feasibility. His resistance to Hitler was couched in force ratios, supply capacity, replacement rates and the arithmetic of frontage. He was very often right. He was also arguing inside a war he had planned, over objectives he had already accepted, which is what makes the disagreement technical rather than moral.

The dismissal in September 1942 was a collision of incompatible operating systems: a man who ran on staff estimates against a man who ran on will. Hitler told him he lacked the mental toughness for the situation; Halder by then was recording his chief's outbursts with the weary neutrality of a clerk logging a recurring fault. After the war he directed the U.S. Army's German operational history program, marshalling hundreds of former officers into a vast archive of campaign studies — the same Te instinct applied to memory, and, as Ronald Smelser and Edward Davies have shown, a program that quietly helped install the clean Wehrmacht picture in American military thinking.

In the autumn of 1938, with war over Czechoslovakia apparently imminent, Halder was at the center of a genuine conspiracy to arrest Hitler if the order to attack was given. It was planned in the manner of a staff exercise, with troop assignments and a signal to trigger it — and it evaporated the moment the Munich agreement removed its precondition. He never came that close again, and for the rest of the war his opposition stayed inside the boundaries of an operational disagreement.

That is inferior extraverted intuition in its usual form: capable of imagining the alternative, incapable of trusting it enough to leap. What Halder could not do was act without the situation itself authorizing the act. The July 1944 plotters did leap, and it cost most of them their lives; Halder was swept up on suspicion afterward and spent the end of the war in a concentration camp — a strange and genuinely uncomfortable last chapter for a man who had helped plan the campaigns that filled such camps in the East. He died in Bavaria in 1972, an honored consultant to the U.S. Army.

Why ISTJ Over INTJ

The contrast with Manstein is the cleanest test available: the same problem was put in front of both men in the winter of 1939, and only one saw a new answer. Halder's contribution was of a different and genuinely important kind — and by an irony he cannot have intended, the record he kept out of sheer procedural compulsion is now one of the sharpest tools historians have for taking apart the stories his colleagues told afterward.