The exercise failed almost immediately.
Batu stood on the northern edge of the training ground and watched Ulan's section ignore the coordination signal for the third time in forty minutes.
That narrowed the problem.
Penk's function was working. The timing signals were going out on schedule. The relay chain was clean. Ulan was receiving the signals, weighing them, and choosing his own timing anyway.
Torghul stood beside him. He hadn't spoken since the second failure.
The fourth signal came.
Ulan held again.
His section remained fixed on the western edge of the field while the two flanking elements advanced without them. The break in the line was obvious. Batu could see it from where he stood. Anyone on the ground could.
Torghul exhaled through his nose. "I'm going to end it."
"Wait."
Penk had stopped signaling.
Instead of forcing the matter from staff position, he rode toward Ulan at a walk. That caught Batu's attention. Penk was twenty-three, maybe twenty-four. He had spent the last hour being ignored by a man with fifteen years of field rank over him.
A walk instead of a confrontation meant he had changed tactics.
He stopped beside Ulan and said something too quiet for Batu to hear. Ulan turned toward him. Whatever Penk said, he kept it short.
Ulan's posture shifted. Not much. Just enough. The slight adjustment of a man who had received new information and was reconsidering.
Then he nodded once and signaled his section forward.
The exercise restarted.
It ran clean for the next thirty minutes.
Torghul watched the finish in silence. "What did he say to him."
"I don't know. Ask him after."
When the exercise broke, Torghul sent a rider for Penk.
The young officer crossed the field wearing the careful expression of a man who had not yet decided what kind of summons this was. Praise and correction often sounded the same until the first question.
Ulan followed at a distance. He stopped at the edge of the group and stayed silent. He looked like a man who had arrived somewhere by mistake and was still deciding whether leaving would draw more attention.
"What did you tell Ulan," Torghul asked.
Penk glanced once toward Batu before answering. "I told him that if his section held through one more signal, I'd have to log the timing gap in the exercise record. And that the record goes to the tumen review."
Torghul studied him. "That's all."
"Yes."
From the edge of the group, Ulan spoke without looking at any of them. "It was a reasonable point."
Then he turned and walked back across the field before anyone could answer.
Torghul dismissed Penk with a motion of his hand. The young officer returned toward staff position.
"He gave Ulan a reason that had nothing to do with whether the signal was correct," Torghul said.
"Ulan spent forty minutes making his own call because the real argument was authority," Batu replied. "Penk changed the pressure. The review record had nothing to do with rank."
He watched Penk rejoin the staff element at the edge of the ground.
A useful instinct. Not a solution yet, but movement.
"Keep them in the same element," Batu said. "This isn't finished. But it's moving."
He left the training ground and headed toward the command quarter.
Mersek was already there.
Batu spotted him from twenty meters away, standing outside the outer administrative tent and discussing the boundary complaint with Orel. The issue had been unresolved since before the Sarat campaign.
Mersek held a document in one hand while tracing a line across the felt with one finger. He was making a precise argument about the northern pasture boundary.
Orel noticed Batu first and straightened. Mersek turned.
"My lord."
His manner had not changed since the meeting about the watch reform deadline. Direct. Steady. No exaggerated deference. No attempt at performed humility.
"The boundary complaint," Batu said to Orel. "Where does it stand."
Orel summarized.
The northern pasture line was genuinely unclear. The original boundary markers had been displaced. Weather could have done it. One of the involved sub-units could have done it.
Mersek's position was that the current line favored the neighboring sub-unit against established practice.
The neighboring commander argued that the current line reflected the original intent.
Batu looked down at the felt document.
The boundary line had been marked in charcoal. The disputed stretch ran roughly two hundred meters along a low ridge.
He studied Mersek while appearing to examine the map.
Mersek's hands stayed relaxed. His eyes moved between document and commander with the easy rhythm of a man discussing routine administration. No tightness in the jaw. No sudden stillness.
Either he was clean, or he was exceptionally disciplined.
Batu had already learned not to trust his first reading of this man.
"Send a survey rider to locate the original post positions," Batu told Orel. "Reset the markers based on what he finds. Not on memory. Both commanders accept the result."
Orel recorded the order.
Mersek considered the document for a moment, folded it, and handed it back.
"That's acceptable."
This time he left without stretching the exchange into a forty-minute exercise. No delayed departure. No waiting for dismissal. He walked away from the tent like a man leaving behind a solved problem.
Batu remained with Orel another minute, clearing two smaller matters.
Then he headed back toward his ger and turned Mersek's behavior over in his mind.
If a man was feeding information east, he would benefit from leaving the boundary dispute unresolved.
An unresolved complaint created administrative visibility. It put him in records. It gave him ordinary reasons to move through the command quarter. It justified proximity to documents, staff, conversations.
A resolution closed that path.
Mersek had come today to push the complaint toward conclusion.
That suggested two possibilities.
Either the dispute genuinely mattered to his unit's grazing access.
Or he was cleaning up a visible thread before some larger shift.
Batu still lacked enough information to separate those explanations.
He needed Mersek to move again.
And Mersek would only move if given a reason.
He was still considering what kind of pressure might produce that movement when Khulgen found him outside his ger.
"Siban arrived an hour ago," Khulgen said.
He paused.
"He sent greetings through his aide. Said he'd present himself whenever it suited you."
Batu had known Siban through memory long before the current situation. He was his brother, one of Jochi's sons, responsible for the Irtysh border khanate.
His unit numbers were accurate.
His supply requests were reasonable.
His inspections arrived on time and contained no surprises.
A man who shaped his record that carefully was a man who thought about his audience.
"Send word that I'll see him at the morning meal tomorrow."
Khulgen left.
Batu stepped inside his ger and sat.
He considered what a morning meal communicated as an opening move.
A private audience signaled individual importance.
A public setting signaled comparative judgment.
A meal sat between those positions.
Functional. Social. Controlled without feeling formal. The kind of setting where men revealed information indirectly because the surroundings did not feel like an interrogation.
Siban would understand that.
A man attentive to his administrative record would understand exactly what a meal invitation implied.
Which meant tomorrow morning would not simply be breakfast.
It would be two men reading each other through ritual and conversation, and the sharper reader would leave with more information than he arrived with.
Batu held one advantage.
He knew what he intended to accomplish.
He still did not know what Siban thought he was doing.
That would change after breakfast.
Outside, the camp settled into its early evening rhythm.
Fires rose across the central ground.
The horse lines moved through their evening allocation.
Somewhere on the eastern flat, Torghul's training cadre was recording the day's exercise results. The report now included a timing gap and a staff-resolution intervention that Penk had carried out without instruction.
Small items.
Still, systems accumulated in layers.
Batu thought about the six-year window and his place inside it.
Perhaps two months remained before the reincarnation point. Give or take.
In the original history, this period had been administrative consolidation under Karakorum's direction. No independent construction. No institutional divergence. The western tumens waiting for the next eastern campaign order.
He was already far enough from that path to matter.
Four tributaries.
A functioning intelligence operation.
A staff coordination layer that had not existed before.
A training cycle running doctrine that, in the original timeline, would not emerge for another decade.
The divergence was not cosmetic.
It was structural.
But the structure still depended on him.
Too many critical decisions required him physically present at the center. Slightly less than six years remained on the clock. The foundations needed to bear weight before that time expired.
What he needed was a system that could operate without him judging every important decision himself.
Because when Ogedei died and eastern pressure arrived, there would be no time left to build what should already exist.
The morning meal with Siban would answer part of that calculation.
It would tell him how much of his remaining time would be spent watching his own camp instead of building beyond it.
He hoped Siban was the kind of man he remembered to be.