I have positive energy, so the Star Hold shouldn't be decommissioned, but this keeps happening.
For example: I've locked in a species and they can't spread any more. At both possible points of passage that I own, I've place heavily upgraded Star Holds with Disruption Field, Target Uplink and 4 Hangar Bays, not to mention defense platforms, making my Star Hold reach 5K in military might.
With low income, the species can't put together all that mighty of a fleet, but they still somehow manage to put together a 2.8K fleet, and then declare war on me to finally be able to expand.
What I expect to happen next is for their fleet to fail to breach my defenses. But they actually manage to destroy the Star Hold.
How do I stop this from ever happening again once and for all? If I have a superior economy, more means, and more people, I expect that putting all my chips on one star system would have me win in that one star system. How does a fleet at barely over half the strength beat a Star Hold?