Semper Mars. Ian Douglas

of the US Armed Forces if that happened, or that they might even lose their citizenship. She was pretty sure that the other Hispanics in her platoon—Garcia, Ortega, and Carle—all felt the same.

      In a way, she welcomed this current crisis with Mexico. It gave her an opportunity to show everyone just where her loyalties truly lay. She’d found it interesting as she thought about the problem over these past few days, however, that her primary loyalties weren’t to the United States of America, though she considered herself a patriot and was willing to put her life on the line for her country.

      Her main loyalties were to her brother and sister Marines.

      She used the utility wrist-top jacked into her armor’s dataport to open a window on her HUD’s data display. Channel four showed a computer-generated map of the region northeast of the Mexico DF. The aerial relief flotilla had already cleared the Sierra Madre Oriental, flying nap-of-the-Earth up the Nautla Valley, then hurtling low across the plains of Tlaxcala. They were over Texcoco Lake now, hurtling toward downtown Mexico City at better than four hundred knots. Eighteen kilometers to go—at this speed, less than two minutes more.

      “Everybody check your gear!” she called. “Ninety seconds!” She wished the Peregrine had a window so that she could see out…but, of course, every square centimeter possible of the aircraft’s hull was coated in radar-absorbing polymers. She watched as each Marine in the platoon checked the armor and ordnance of the Marine at his or her left, then repeated the inspection to the right. Gunnery Sergeant Christopher Walsh checked her over, making certain that external armor snaps were locked, that grenades were secure, that she didn’t have any “Irish pennants”—loose straps or cords dangling where they could hang up and trap her. Then she returned the favor.

      “Nervous, Lieutenant?” Walsh asked her on the private channel.

      “Hell, yes,” she replied. It was her first time in combat, and Walsh knew that.

      “Good,” he replied, and she could just make out his grin through his dark helmet visor. “If you were sure of yourself, I’d request a transfer out of this outfit, effective yesterday. Don’t worry, L-T. You’ll show ’em!”

      She was grateful that he hadn’t patronized her with a “you’ll do fine,” and more grateful still that he recognized the spot she was in. Hell, in another couple of minutes, she might find herself shooting at her relatives.

      But that was because they were shooting at her family….

      United States Embassy

       Mexico City, República de

       México

       1520 hours local time

      The Mexican civilians had stopped coming over the wall now; in fact, as far as Bledsoe could tell, all of the civilians had scattered and fled after those first few volleys. Bledsoe was still on his knees next to Larabee, bracing his ATAR on the sandbag wall, drawing a bead on a scrawny guy wearing officer’s epaulets who seemed to be waving the attackers on from the far side of the barred front gate. He squeezed off another burst and watched the man tumble backward onto bloody pavement.

      The initial rush had been beaten back, but the attack was far from over. Something large was growling unseen on the street beyond the gate, ominous and implacable. Moments later, an old Bradley AFV lumbered around the corner, striking the closed gate in a piercing clash and rattle of metal bars. A second M-2 Bradley followed the first…and a third.

      “Christ!” Larabee yelled above the din. “They’re sending in the whole frigging Mex army!”

      A rotary cannon on the lead Bradley howled, its muzzle flash a flickering beacon on the turret. Both Marines hit the deck as brick and sandbag alike were pulverized by the stream of heavy metal. To the right of the main gate, a portion of the wall burst inward in a crashing shower of brick. The squat, hulking shape grinding through the breach was no Bradley, however, but an M1A2, one of the old Abrams tanks sold to the Mexicans twenty years before.

      Abrams and Bradleys might be laughably obsolete by modern standards, but they were still deadly. Neither of the Marines was packing weapons that could challenge that kind of armor.

      Reaching up, Bledsoe touched the transmit key on the Motorola strapped to his vest. “Homeplate, this is Outfield!” he called. “We’ve got heavy armor here, and they’re knockin’ on the goddamn front door!”

      “Copy that, Outfield,” a calm voice replied. It sounded like Captain Warhurst. “We see them. You can’t do anything more out there. Come on inside.”

      “Rog—”

      The world exploded. The Abrams had just fired its main gun, and the round had crashed into the front of the Residence and detonated somewhere inside, behind the front door. Bledsoe and Larabee, both already flat on the front porch, were lifted several feet and slammed against their crumbling sandbag barricade.

      Groping through the swirling smoke, Bledsoe looked around for Larabee. The sandbags had been scattered as though kicked by a playful giant; Larabee lay on his back where the blast had flung him, off the porch, down the steps, and several yards out into the Residence front lawn. The front of the Residence itself, never designed to take such punishment, had partially collapsed, a jagged tangle of brick and beam and splintered wood, licked about with flame. The upper stories and the rear of the large mansion were intact, but a few more direct hits by that tank and the whole structure was gonna come tumbling down.

      Mexican troops were spilling from the three Bradleys now, troops better equipped than the civilians in the first wave had been, with modern assault rifles and kinevlar vests similar to what Bledsoe and Larabee were wearing. Gunfire popped and chattered; Bledsoe groped for his ATAR, dropped when the Abrams had fired, and knocked down three or four running figures. The smoke was getting thicker now, and it was difficult to acquire and hold a target. The full-auto fire from the wrecked front of the building seemed to be making the attackers cautious.

      But they would be charging across the lawn and up the steps of the Residence any second now.

      Bledsoe knew he didn’t have much time.

      Rattlesnake One

       TR-5 Peregrine transport/gunship

       Mexico City, República de

       México

       1521 hours local time

      “Landing alert, Lieutenant!” sounded in Fuentes’s headset. “Thirty seconds!” She could feel the transport’s nose coming up, could feel the change in pitch of the engines as they rotated to their straight-up, hover position.

      “Roger that,” she replied.

      “We can see the embassy now,” the Peregrine’s pilot added. “Looks like there’s a lot of shooting going on down there.”

      Her pulse raced. Had war broken out officially, or was this just another “incident,” the kind that left widows and cripples in its wake? Had the Mexicans really been stupid enough to try a toe-to-toe slugfest with the United States?

      Maybe they thought that with UN backing, they could win.

      She punched in a combination on her wrist-top, then studied the low-res vid-feed from the TR-5’s nose camera as it flickered in pale black and white on her helmet display. The embassy’s broad, rooftop helipad was visible at the center of the picture; one of the AV-32s swept past her view from right to left, circling low, dropping smoke canisters that erupted in a dense, boiling gray-white fog around the embassy perimeter. There might be snipers nearby packing firepower heavy enough to bring down a Peregrine, and the smoke would hamper them when they tried to find a target. It would also screw up the enemy’s laser range finders. There was already a hell of a lot of smoke in the area; it looked like the front of the Residence might be on fire.

      Two of the Peregrines, moving according to plan, were making for the helipad, where they would start taking off the embassy’s civilian staff. While a third circled the compound providing gunship support, the one carrying Fuentes’s platoon would deposit them in the compound between the Residence