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.
5. Bismarck Challenge 2026
The challenge is designed to prepare soldiers for the physical and mental demands of future operations. Photo: James Hardisty
6. Bismarck Challenge 2026
The event is one of the army’s most challenging physical training exercises, testing soldiers’ strength, determination and ability to work under pressure. Photo: James Hardisty
7. Bismarck Challenge 2026
A queue of soldiers during a racing challenge. Photo: James Hardisty
8. Bismarck Challenge 2026
Competitors faced a demanding 10-mile test of physical fitness and stamina while carrying 18kg of load-bearing equipment. Photo: James Hardisty