It would have had a lot more traffic and have been larger than other tunnels. Losing 2 companies of men in there is a not-insignificant war grave.
France hated Germany because of the loss of Alsace Lorraine, and the wreckage of 1871.
For WW1, the reason I consider Allied and Central powers to be equivalent has more to do with the flaws of the Allies in that era than with the actions of the Central powers.
With WW2 and Axis/Allies, even though I’m not at all sure how to judge the relative behaviour of Stalin (Allied) vs Hitler (Axis) — there’s too much propaganda for me to filter though — the British and Americans were unambiguously more moral than the Axis powers.
I’m emphatically not saying “yay Central powers!”, I’m saying “WW1 Allied powers (not WW2! Just WW1!) also bastards”.
I may have to reevaluate this belief — GCSEs aren’t good qualifications, they’re what UK pupils do at 16 — it’s just that my current belief is everyone looked bad in the first war.
Losing track of one of those tunnels isn't really noteworthy, and the French have no love for the Germans. On their retreat back to Germany, they destroyed the Alsace region "just because."
Most people today think of the Allies and Axis countries as equivalent, but even as early as WW1 the Axis had a reputation as mean and brutal.