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docs/skills/sturdy-construction.md

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+# Sturdy Construction
+
+**Entity Type:** Skill
+
+**German Name:** Fundamente der Ewigkeit (Foundations of Eternity)
+
+## Properties
+
+| Field | Value |
+|-------|-------|
+| Category | Military |
+| Type | Repeatable Research |
+| Base Cost | 1,500,000 Knowledge |
+
+## Effects
+
+| Effect Type | Target | Value |
+|-------------|--------|-------|
+| Hitpoints | Towers and Gates | +5% |
+
+## Description
+
+Increases the defensive strength of your Towers. As a Repeatable Research skill, it can be researched multiple times, with each subsequent level costing significantly more Knowledge.
+
+## Skill Tree Position
+
+Located at the end of the Military skill tree branch. Repeatable Research skills are the most expensive and can be upgraded indefinitely, though costs escalate dramatically with each level.
+
+## Related Skills
+
+Other Military category skills include:
+- Aegis Research
+- Aux In, Aux Out
+- Axe-Bearers
+- Balearic Ballistics
+- Perilous Ports
+- Encampment Errands
+- Carpe Civitas
+- Cover Positions
+- Multi-task Menders
+- Equicurrian Chariots
+- Featherweight Frames
+- Plated Hulls
+- Rammed Earth
+- Dominion Research
+- Here Come The Cavalry
+- Imperial Measures
+- Camp Campaigning
+- Cataphractarii
+- Co-ordinated Volleys
+- Legatic Research
+- Legionaries
+- Legionic Research
+- Manipular Manoeuvres
+- Manor Invictus
+- Nautical Research
+- Ordine Research
+- Parabolics
+- Parmae
+- Rain Of Pain
+- Praetorians
+- Bargain Palisades
+- Pro Domo
+- Provisional Castra
+- Vitruvius-class Crossbeams
+- Repair Cranes
+- Armoursmithing
+- Shipwright Studies
+- Shipboard Scorpiones
+- Protective Entourage
+- Catapult Carriers
+- Navarchal Research
+- Scorpiones
+- Spathas
+- Brick By Brick
+- Another Brick In The Wall
+- Stone Walls
+- Slingers
+- Chariots
+- Sword and Sald
+- Tuatha De Danann
+- Tower Ballistae
+- Tower Contiguity
+- Valetudinaria
+- Cautious Greeting
+- Tacking
+- Target Practice
+
+## Source
+
+Data from [anno.land](https://anno.land/en/anno-117-skills/fundamente-der-ewigkeit/)