The map board had been on the table since before the commanders arrived.

Batu had placed the pieces himself in the early morning. Two carved markers on the eastern bank of the Volga, and one on the far side above where the Kama’s mouth met the main river.

The commanders came in at different times and read it before sitting, which was the appropriate thing to do with a map that had already been thought through.

Subutai arrived last.

He stood at the board with his cup in his hand, turning it in the motion he used when he was organizing the next thing. He had been doing it long enough that the airag inside had gone cold before he noticed.

He set the cup down and looked at the piece above the Kama confluence.

At the room’s far side, Tangqut sat with his arms across his chest and his attention on the board. Toqa-Timur was beside him. Berke was slightly apart. Kirsa was at the far corner.

All four of them had come to observe, and were observing.

"Where we cross, what we hit, and when we come back," Batu said.

Subutai looked at the board.

"The open ford across from Bolghar is watched," he said. "Their scouts have covered the eastern route for a hundred years. That is the crossing every Bulgar commander plans his defense around."

He put his finger on the map north of Bolghar’s position.

"There is a crossing the reed vegetation hides. You come through the channels from the east bank, cross below the Kama’s mouth at the Idel ford, and you are on the left bank at the open ground north of Suvar before their scouts have seen anything. The reeds covers the route."

Dorbei had been listening with the flat attention of a man recalling specific things.

"I have seen formations break apart in reed channels," he said. "The forward riders makes contact before the main body has travelled through the obstacle. You lose depth, and the cover has not bought you anything."

"That is what happens when you move blind," Subutai said. "Bayan goes out a full day ahead. He maps the usable channels and marks them before the forward riders enters. The formation follows marked ground."

He looked at Dorbei.

Dorbei sat with that for a moment. He knew the difference between a risk that had an answer and one that did not.

He let it go.

Torghul was studying the crossing section.

"How wide is the usable crossing?" he asked. "I need the formation width to plan the march."

Subutai described it, the reed channel entry, the crossing width where the ford held firm bottom at the left bank, the depth of formation the terrain would carry at any point in the passage.

Torghul converted this into the formation without being asked.

His tumen would go through the reeds first, secure the far bank, and cross in two columns along the widest channel. Dorbei’s tumen would follow using separate ground through the reeds and cross at the ford’s southern end, cleaner going, avoiding the churned track the forward formation would leave behind.

"My riders can manage the south margin of the reeds," Dorbei said. "I have worked worse ground than that on the western steppes."

Orda had been looking at the eastern bank’s section.

"The pasture along the route should be well-supplied" he said. "Both formations can march and graze at the overnight halts without dedicated rest days if the pace is managed."

He looked at Subutai.

"Name the crossing date, and I will give you the departure from Sarai."

Subutai named the date.

Orda counted backward against what he knew of the northern steppes march pace.

"Nine days from now," he said.

Torghul was already working through the fodder rotation in his head.

Batu could see it in his face.

"We strike at Suvar," Batu said.

Subutai picked up his cup and set it down again.

"Suvar’s outer positions, the fortified settlements north of the city that form its first defensive line," he said. "Those are what the autumn raid can reach, and what the spring campaign needs cleared before it can touch the city itself."

He looked at Dorbei.

"The perimeter positions hold the winter stores."

"Grain, horse fodder, the supply infrastructure for the garrison."

Dorbei continued. "You destroy the base, and the garrison faces the spring campaign without the logistics that make the city defensible."

Torghul said, "How long on the left bank?"

"The outer positions fall on the first day," Subutai said. "The horses need three days after a full assault before they are capable to sustain the return march. Two days of dispersed raiding while they recover, withdrawal on the fourth."

He looked at Orda.

"The Volga above the Kama mouth begins to ice at its margins at late autumn. The crossing date I named puts you across before the ice becomes a problem."

Orda confirmed it.

"Then we have the window," Torghul said.

Subutai set both hands flat on the table.

What he said next came in with no shame, only indifferent professionalism.

"I was with the force that fought the Bulgars more than a decade ago. We had come off the great raid. The horses were at the end of what they had, and a Cuman contingent led us north toward the forest near the Samara Bend. The Bulgars had been waiting in the trees."

He looked at each commander in turn.

"They pulled us into ground where our depth and our width stopped mattering entirely. Narrow paths, limited visibility, no room to spread. We took significant losses from a force we should have destroyed in the open."

He let that information firm itself.

"The forest is the limit of this operation. Any Bulgar unit that retreats into the trees is no longer a target. The assault continues against what is still in the open. Once a unit enters the trees, you let it go."

The room considered that for a moment without anyone adding to it.

Dorbei said, "I have seen the same principle at smaller scale on the western steppes. Forest changes what cavalry can do. The concealment going in and the constraint coming back are the same ground working in both directions."

Torghul said, "It goes into the orders in writing before we depart. The constraint is specific enough that a jaghun commander can apply it without asking upward."

"Make sure it is specific enough," Subutai said. "You do not want someone making that decision for the first time in the middle of the engagement when they think there is an opportunity in front of them."

Torghul accepted this.

The force structure settled from there.

Torghul’s formation would cross through the reeds first and strike the outer positions of Suvar’s northern perimeter. Dorbei’s formation would cross behind on its own route, then disperse into the raiding groups for the winter stores and the minor settlements. Orda’s White Horde would hold the east bank and the supply line for the return march.

The combined effective strength came next. Torghul looked at the observers and addressed Tangqut directly.

Tangqut gave the number.

His riders, Toqa-Timur’s riders, and Berke’s remnant force had all been running inside the Jochid army hierarchy. Torghul had the figure, but he needed Tangqut’s count confirmed from the other side.

Tangqut named it flatly, and Torghul noted it.

Batu then spoke.

"We depart in nine days," he said.

He looked around the table.

"Bayan goes out a full day before the vanguard enters the reeds area. The forest constraint goes into every unit’s orders before we leave Sarai. We will strike quickly, plunder all we can and return before the window closes."

Torghul was already standing.

Dorbei was looking at the board with the flat attention to catalog the positions he would be responsible for.

Orda reached for his cup.

The council was done.