Offensive / battle
Naval
Technology & horror
Political turning point
Western Front trench line
◉ Front lines: 1914 · click to cycle
Every factual claim in this dataset was checked against published reference works, national war museums, official histories and specialist scholarship. Casualty figures for this war are contested almost everywhere; the numbers here are widely cited estimates, not settled counts. Claims that could not be confidently confirmed are flagged below with a risk level and an explanation.
"Verified" means the claim was corroborated by at least one reliable independent source. Risk levels apply only to the 43 claims that could not be fully confirmed or where sources conflict.
| Ref | Source | Covers | Risk |
|---|
Front-line traces on the map are indicative, drawn to convey position and movement rather than as survey-accurate boundaries. Ground gained is given in statute miles and rounded. Divisional counts vary between sources depending on whether attached, reserve and formations in transit are included. Where a figure is a range in the literature, the mid-point or most commonly cited value has been used.