Chapter 689: Chapter 688

What the 1st Warband did when the road column’s center rotated away from it was the thing that Arka’garr had been building his formation toward since the moment the rotating assault began.

The rotation was the point.

The 1st Warband had not been pressing the road column’s front because it expected to break through a six-thousand-man column with a thousand warriors at the front of a rotating formation.

It had been pressing the front because a force engaged at its front and disrupted at its flank experienced the two pressures as simultaneous demands on its command structure, and a command structure managing simultaneous demands made decisions in the compressed timelines of simultaneous demands rather than the considered timelines of sequential analysis.

The decisions made in compressed timelines were not always wrong but they were always reactive, and a reactive command structure was responding to the Horde’s initiative rather than exercising its own.

When the column’s center rotated, it rotated because the command structure had assessed the flank disruption as the more urgent threat and had directed the center to address it. The assessment was correct. The response was correct. The timing was what Arka’garr had been waiting for.

The 1st Warband advanced at the assault pace the moment the center began its rotation. Not into the gap that the rotation had created, which was the obvious move and the move that the column’s command structure would have prepared for.

Into the column’s original front face, which was now the face of a formation that had half-turned away from it and whose shield discipline at the front had degraded from the disruption of the turn.

Shields that had been overlapping and locked were now at forty-five degree angles to the assault because their bearers were mid-rotation. Spears that had been angled correctly to receive assault from the north were now angled toward the south-west where the Rumbling Clan was operating.

The 1st Warband hit the partially rotated formation at the moment its geometry was worst and its warriors’ attention was divided between the direction they had been facing and the direction they were now being told to face.

The impact was the loudest single moment of the battle. Eight hundred warriors at the assault pace, the warriors who were physically the largest and the strongest that the Horde’s selection process had concentrated into its premier formation, hitting a front that was not fully oriented to receive them, with the full weight and the full speed and the full output of everything they were.

The column’s front collapsed.

Not gradually. Instantly. The formation’s center section, perhaps two hundred warriors wide at the road’s constraints, folded backward on itself as the impact’s energy transferred through the partially rotated shields into the warriors behind them, who had been expecting the impact to come from the south and were not braced for it to come from the north.

The falling of the center section destabilized the sections on either side, and the destabilization propagated laterally in both directions along the column with the speed that formation failures propagated when the formation’s warriors were already managing multiple simultaneous threats.

Arka’garr was through the gap in the time it took the gap to become wide enough for him to enter. He did not pause at the threshold. There was a combat doctrine that the warband master had been teaching for years that described this moment in precise terms: a gap in a formation was an opportunity measured in heartbeats and the warband master who hesitated at a gap had not understood the doctrine.

He was through, and behind him the 1st Warband flowed in the way that water flowed through a breach, not the contained flow of a stream but the expanding, uncontrollable flow of water that had found an opening in a dam, filling every available space and extending in every direction that the opening permitted.

* * * * *

Lord-Commander Aldrath watched the road column’s collapse from his command position and made the decision that his rank and his experience required him to make.

“General withdrawal,” he said. “Organized. North along the road. Cavalry screens the rear.”

He said it without the particular weight that a first withdrawal order carried for commanders who had never given one before. Aldrath had given withdrawal orders before.

He had given them on three campaigns when the situation required it and he had given them with the professional clarity that distinguished a withdrawal that preserved a force from a withdrawal that destroyed it.

The order traveled through the Threian command structure with the speed that Aldrath’s reputation produced in the officers who served under him. They were professionals. They moved.

The eastern ridgeline force, still engaged with Trot’thar’s uphill assault, received the withdrawal order and began its own extrication, the companies peeling off the ridgeline face in the sequence that doctrine specified, each company providing cover for the company that peeled off before it.

It was competent work executed under pressure, and it cost them warriors at every step because Trot’thar did not let them peel off cleanly. His formation pressed the moment it saw the withdrawal begin, because the moment a formation began to withdraw was the moment its orientation was split between the threat it was withdrawing from and the direction it was withdrawing toward.

Haguk’s cavalry, which had spent the eastern engagement in the running contest that the wargs were built for, pivoted north to fulfill the pursuit mission that Khao’khen had assigned it.

The warg line that had broken the Threian cavalry’s leading element reformed at Haguk’s signal with the fluid precision of riders who had been training together for years and flowed north along the road’s eastern edge at the pace that kept the retreating column’s rear in contact.

The battle of the depression lasted four hours in total. The combined Threian force of twenty-five thousand engaged eight thousand and withdrew having lost eleven hundred and forty soldiers killed, four hundred and thirty wounded, and its cavalry’s eastern squadron reduced to combat-ineffective status.

The Horde lost one hundred and sixty-eight warriors killed and three hundred and seven wounded.

The ratio was not the ratio of a battle fought by a force one-third the size of its opponent.

Aldrath sat in his command post that evening and read the casualty report twice and then sat with it in his hands for a long time without speaking.

“What just happened,” he said finally, not as a question about the tactical facts, which his report had stated clearly, but as a question about the category of thing that had happened, which the tactical facts did not fully capture.

“You fought the Yohan First Horde,” Snowe said, “at full capacity.”

“I have never seen an orcish force fight like that.”

“No one has. That is the problem.”

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