The challenge originated in Herford, Germany, before arriving at Catterick Garrison - the military event tests teamwork, resilience and determination of soldiers.
This year, personnel from across 1st (UK) Division engaged in 10 miles carrying 18kg.
Here are some of the best photos from the event.
10. Bismarck Challenge 2026
Soldiers were in their army gear and carried 18kg bags as part of the challenge. Photo: James Hardisty
11. Bismarck Challenge 2026
Soldiers demonstrated the commitment and fitness required to meet the challenges of military service. Photo: James Hardisty
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