She leaned back, hiding her desire to sigh sadly behind a calm face, and watched the tactical display. Fearless’s projected vector stretched across it, terminating right on the half light-second outbound departure threshold of the Junction. The light cruiser’s green bead tracked steadily down the thin line, threading its way through the mammoth defenses, and even in her own depression, Honor felt a familiar tingle at the firepower ringing the invisible doorway between the stars.

The smallest fortress out there massed close to sixteen million tons, twice as much as a superdreadnought, and its weapons-to-mass ratio was far higher. The forts weren’t hyper-capable, for they used mass a warship might have devoted to its hyper generators and Warshawski sails to pack in still more firepower, but they were far more than immobile weapon platforms. They had to be.

Each of those forts maintained a stand-by battle watch and a 360° sidewall “bubble” at all times, but no one at this end of the Junction could know anyone was coming through it until they arrived, and no one could remain eternally vigilant. Thus a sneak attack—from, say, Trevor’s Star—would always have the advantage of surprise; the attacker would arrive ready for battle, already seeking out targets for his weapons, while the defenders were still reacting to his arrival in their midst.

That was why no defensive planner placed his permanent defenses closer than a half million kilometers or so to a junction. If a hostile task force emerged within energy weapon range of the defenses, those defenses would be destroyed before they could reply, but ships transiting a wormhole junction arrived with a normal-space velocity of barely a few dozen kilometers per second, far too little for a high-speed attack run. With the closest forts so far from him and too little speed for a quick run-in to energy weapon range, any attacker must rely on missiles, and even impeller-drive missiles would require almost thirty-five seconds to reach them. Thus the forts’ duty watches—in theory, at least—had time to reach full readiness while the weapons accelerated towards them. In practice, Honor suspected, most of them would still be coming on-line when the missiles arrived, which was why their point defense (unlike their offensive weaponry) was designed for emergency computer override even in peacetime.

In time of war, the forts would be augmented by thickly seeded remote laser platforms—old-fashioned, bomb-pumped laser satellites—much closer in and programmed to automatically engage anything not positively identified as friendly, but such measures were never used in peacetime. Accidents could always happen, and the accidental destruction of a passenger liner whose IFF wasn’t recognized could be embarrassing, to say the very least. An attacker would still have sufficient surprise advantage for his energy batteries to kill a lot of satellites before they could respond, but enough of them would survive to handle him very roughly indeed.

Nonetheless, heavy losses could be anticipated in the inner fortress ring under the best possible circumstances, so the “forts” in the outer rings had to be able to move to fill in the gaps and mass upon an attacker. Their maximum acceleration rates were low, well under a hundred gravities, but their initial positions had been very carefully planned. Their acceleration would be enough to intercept attacking forces headed in-system, and their engines were sufficiently powerful to generate impeller wedges and sidewalls to protect them.