According to Ulysses, during his time in the Legion, soldiers went on forced marches throughout the expanse of the Crimson River Trail. Throughout the trail, broc flowers and xander roots were common, and so bitter drink was used to keep the soldiers going. Since the trail was flooded with cazadores, the bitter drink was vital for healing wounded legionaries.
Behind the scenes
- The Courier: "What's the history of [Bitter Drink]?"
Ulysses: " Caesar taught them the last one, though, so that's it for them. Recipe still exists, Legion uses it on forced marches with wounded soldiers. Wouldn't have made it through Crimson River Trail a few years back without it - losing so much blood early on, was a Cazador feast. Enough Xander root and Broc flower along the trail though, the Legion was able to keep pace and get where they were going."