He knew Travis W.W. Oliphant was useless in these turf battles. He knew it, but the MP didn’t. And the unhappy fellow evidently didn’t care to take chances with an angry senior officer. The convicts arrived less than half an hour later.

“About fucking time,” Dover snarled at the driver who brought them. “You should have got ’em here when you said you would, and saved everybody the aggravation.”

“Sir, I don’t have nothin’ to do with that,” the driver said. “They load the truck, they tell me where to go an’ how to git there, an’ I do it.”

Dover wanted to tell him where to go and how to get there, too. He feared he’d be wasting his breath. Instead, he glowered at the convicts. “You are going to work like mad sons of bitches, or else.”

“Or else what?” one of them said scornfully.

“Or else I will personally shoot your worthless ass off, and I’ll laugh while I do it, too,” Dover replied. “You reckon I’m funnin’ with you, you go ahead and try me.” He waited. The convicts worked. He’d expected nothing else.

Sergeant Michael Pound had been in the U.S. Army a long time. He’d spent a lot of that time getting barrels to do what he needed them to do. He wasn’t just one of the better gunners who wore green-gray coveralls, though he was that. He was also a damn good jackleg mechanic. A lot of barrel men were. The more repairs you could make yourself, the less time you had to spend in the motor pool. The less time you were out of action, the more trouble you could give the Confederates.

“Distributor cap, I bet,” he said when the mechanical monster wouldn’t start up one rainy morning east of Columbus, Ohio. “Damn thing gets wet inside too easy. It’s a design flaw-it really is.”

“Can you fix it?” asked Second Lieutenant Don Griffiths, the barrel commander. He was perhaps half Pound’s age: a puppy, like most second lieutenants. Unlike a lot of shavetails, he had a fair notion of what he was doing. He also didn’t seem to think asking questions threatened his manhood.

“Yes, sir.” Along with a.45, Pound carried a formidable set of tools on his belt and in his pockets. He had the engine louvers off in nothing flat, and got the distributor cap off the engine almost as fast. One glance inside made him nod. “Condensation, sure as hell.” The loader, Cecil Bergman, held a shelter half over his hands while he worked. The rain would only make things worse.

“What can you do about it?” Griffiths asked. “A dry rag?”

“Even better than that, sir,” Pound said. He was stocky and wide-shouldered-built like a brick, really. His brown hair had begun to go gray and to retreat at the temples. His eyes were pale in a broad face more Scots than English: marksman’s eyes. He pulled out a small bottle half full of clear liquid. “Absolute alcohol,” he explained. “I’ll rub a little where it’ll do the most good. It evaporates like anything, and it’ll take the moisture with it.” He suited action to words.

The distributor cap went back on. So did the louvers that protected the engine from small-arms fire while letting its heat escape. Pound scrambled down from the engine compartment. “Fire it up!” Bergman yelled to the driver.

There was a cough, a bang, and then the flatulent roar of a barrel engine coming to life. “Nicely done, Sergeant!” Griffiths said.

“Thank you, sir.” Pound clambered up to the turret and opened his hatch. He paused before climbing in and sitting down behind the gun. “Shall we get on with it?”

“I hope so, anyway,” Griffiths answered. “If this rain starts thawing out the ground, though, we’re liable to bog down.”

Pound didn’t think that likely. It was a little above freezing, but only a little. He guessed the rain would turn to sleet or snow before long. But he didn’t want to argue with Griffiths-which, considering how firmly armored in his own competence he was, was no small compliment to the young officer.

They rattled west in company with six or eight more barrels and several squads of foot soldiers. Only two of the barrels were the old models, with an inch-and-a-half gun. The improved machines, of which Pound’s was one, featured an upgunned, uparmored turret and a more powerful engine to handle the extra weight. Their 2.4-inch cannon still weren’t a match for the three-inchers new Confederate barrels carried, but they were the biggest guns the turret ring in the chassis would allow. And they were good enough to give the U.S. machines a fighting chance against the best the enemy could throw at them.

“After Pittsburgh, moving so fast seems strange,” Griffiths said.

“Yes, sir.” Pound nodded. In Pittsburgh, they’d measured progress in blocks per day, sometimes houses per day, not miles per hour. That was a fight of stalks and ambushes and strongpoints beaten down one by one. Now they were out in the open again, rolling forward. “Only a crust here,” Pound said. “Once we break it, they haven’t got so much behind it.”

As if to give him the lie, a Confederate machine gun opened up ahead of them. Even through the turret, Pound had no trouble telling it from a U.S. weapon. It fired much faster, with a noise like ripping canvas. The Confederates, with fewer men than the USA, threw bullets around with reckless abandon.

“Can you see where that’s coming from, sir?” he asked Lieutenant Griffiths.

Griffiths peered through the periscopes built into the commander’s cupola. He shook his head. “Afraid not, Sergeant,” he answered. “Want me to stick my head out and have a look?”

He didn’t lack for nerve. The barrel was buttoned up tight now. You could see more by opening the hatch and looking around, but you also ran a formidable risk of getting shot-especially anywhere in the neighborhood of one of those formidable machine guns.

“I don’t think you need to do that, sir,” Pound said. Now that he’d found a junior officer he could stand, he didn’t want the youngster putting his life on the line for no good reason. Sometimes you had to; Pound understood as much. Was this one of those times? He didn’t think so.

But Griffiths said, “Maybe I’d better. That gun’ll chew hell out of our infantry.” He flipped up the hatch and stood up so he could look around, head and shoulders out of the cupola. Along with a flood of cold air, his voice floated down to Pound: “I don’t like staying behind armor when the foot soldiers are out there naked.”

Michael Pound made an exasperated noise down deep in his throat. Yes, a crewman in a barrel had face-hardened steel between himself and the enemy’s attentions. An infantryman had nothing but his helmet, which wouldn’t even keep out small-arms fire. On the other hand, nobody used antibarrel cannon or antibarrel mines or Featherston Fizzes to try to knock out individual foot soldiers. Lieutenant Griffiths wasn’t thinking about that.

“There it is-about one o’clock,” Griffiths said. “Do you see it now, Sergeant?”

As Pound traversed the turret, he looked through the gunsight. Sure enough, there was the malignantly flashing machine-gun muzzle. “Yes, sir,” he said, and then, to the loader, “HE!”

“HE!” Bergman loaded a white-tipped high-explosive round into the breech.

The gun roared. The noise was tolerable inside the turret. To Lieutenant Griffiths, out there in the open, it must have been cataclysmic. Soldiers joked about artilleryman’s ear, but they were kidding on the square.

When the machine gun kept firing, Pound swore. A 2.4-inch HE shell just didn’t carry a big enough bursting charge to be very effective. He’d seen that in Pittsburgh, and he was seeing it again in among the trees here. “Give me another round,” he told Cecil Bergman.

“You got it, Sarge.” The loader slammed the shell home.

An instant before Pound fired, Don Griffiths groaned. Pound didn’t let himself pay attention till the second HE round was on the way. He saw the Confederate machine gun fly one way and a gunner, or some of a gunner, fly another. But he had no time to exult; Griffiths was slumping down into the turret.