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Vallo pedum IX et fossa pedum XV

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The phrase 'Vallo pedum IX et fossa pedum XV' refers to specific measurements used in military fortification, translating to 'a wall of nine feet and a ditch of fifteen feet.' This reflects the Roman practice of constructing fortified camps or defensive structures, showcasing the importance of strategic planning in military operations. The measurements highlight the Romans' emphasis on effective defenses and the engineering prowess that characterized their approach to warfare.

5 Must Know Facts For Your Next Test

  1. This measurement demonstrates the Roman understanding of effective military architecture, providing both protection and functionality for soldiers in the field.
  2. The depth of the ditch (fossa) was designed not only to impede enemy advances but also to manage water drainage effectively around the fortifications.
  3. In the context of warfare, having such structures allowed Roman legions to establish dominance in occupied territories quickly and secure their supply lines.
  4. The construction of fortified camps often involved detailed planning, using both local resources and Roman engineering techniques to create effective defenses.
  5. These types of fortifications were crucial during campaigns, particularly in Gaul, where Caesar faced various tribal coalitions and needed secure bases for his operations.

Review Questions

  • How did the measurements of 'Vallo pedum IX et fossa pedum XV' illustrate the Roman approach to military strategy?
    • 'Vallo pedum IX et fossa pedum XV' showcases the Roman emphasis on creating formidable defenses that were meticulously planned for effective military strategy. The dimensions reflect an understanding that a solid wall combined with a deep ditch could significantly hinder enemy advances while protecting troops. Such designs were typical of Roman military camps, emphasizing their commitment to maintaining control over conquered territories through strategic fortifications.
  • In what ways did Roman engineering influence the design of military fortifications such as those indicated by 'Vallo pedum IX et fossa pedum XV'?
    • 'Vallo pedum IX et fossa pedum XV' exemplifies the advanced engineering techniques employed by Romans, which included careful measurements for walls and ditches that maximized defensive capabilities. Romans utilized local materials and precise calculations to create fortifications that could withstand sieges and deter invasions. Their innovations laid the groundwork for future military architecture, demonstrating an enduring legacy in both military tactics and civil engineering.
  • Evaluate the broader implications of effective military fortifications like 'Vallo pedum IX et fossa pedum XV' on Roman campaigns in Gaul during Caesar's time.
    • 'Vallo pedum IX et fossa pedum XV' had significant implications for Roman campaigns in Gaul, as effective fortifications allowed Caesar's legions to conduct operations with greater security and confidence. By establishing well-defended camps, they could supply their troops adequately and launch strategic offensives against local tribes. This not only facilitated territorial expansion but also reinforced Roman authority in newly conquered regions, impacting cultural exchanges and long-term stability in Gaul.

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