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.
1. Bismarck Challenge 2026
Soldiers pushed themselves to complete the demanding route. Photo: James Hardisty
2. Bismarck Challenge 2026
French soldier Mahe Pol, aged 22, from the The 27e bataillon de chasseurs alpins battalion of the French Army totally exhausted after crossing the finishing line in first place. Photo: James Hardisty
4. Bismarck Challenge 2026
Around 500 soldiers from across 1st (UK) Division and guest teams took part in the annual military endurance Bismarck Challenge. Photo: James Hardisty
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