The Fort Smith General Darby Challenge honors General William O. Darby with a ruck march and running event in Downtown Fort Smith. Suitable for various participants, the challenge encourages competitive or leisurely involvement. Ruckers take on the event with weighted backpacks, while runners and walkers seek to achieve their personal goals. Participants have a set timeframe to complete their chosen activity. Finisher medals and special recognitions are awarded. The event celebrates the relationship between Fort Smith and its twin cities in Italy, with proceeds benefiting local organizations. Participants can partake in the camaraderie and celebration of this meaningful event.