During the following year, Indians committed many small-scale depredations along the Oregon Trail. However, despite greatly exaggerated alarms, the emigrants of 1855 were for the most part unmolested. Meanwhile, the Army had become convinced that the Indians must be punished, and a force of 600 men under Gen. W. S. Harney marched westward from Fort Leavenworth. The Indian agent at Fort Laramie warned all friendly Indians to come to the south side of the Platte—a warning heeded by many bands. On September 2, General Harney arrived at Ash Hollow, 150 miles below Fort Laramie, and located Little Thunder’s band of Brule Sioux some 6 miles north on the Blue Water. Early the next morning, after rejecting protestations of friendship by Little Thunder, his troops attacked the village from two sides, killing 86 Indians and capturing an almost equal number of women and children. At Fort Laramie, General Harney issued a stern warning to other Sioux bands, then proceeded overland through Sioux territory to establish a military post at Fort Pierre on the upper Missouri River. _Handcart to Pony Express, 1856-61_ In 1856, in an effort to reduce the cost of emigration to Utah, the Mormons introduced the handcart plan. Two-wheeled handcarts, similar to those once used by street sweepers, were constructed of Iowa hickory and oak. One cart was assigned to each four or five converts who walked and pushed or pulled their carts over the long trek from the railhead at Iowa City to the Salt Lake Valley. Livestock was driven with the parties and at times 1 ox-drawn wagon to each 100 emigrants was provided to carry additional baggage and supplies. The first handcart parties were very successful, but the last two, in 1856, started too late in the summer and were snowed in near Devil’s Gate. There, more than 200 of the 1,000 or more in the two parties perished from cold and hunger before the survivors could be rescued by wagon trains sent out from Utah. From 1856 to 1860 some 3,000 Mormons made the journey to Utah in 10 handcart companies, and to these footsore travelers Fort Laramie was indeed a haven in the wilderness. Early in 1857, the War Department decided to abandon Fort Laramie, but events forced the cancellation of the order before it could be carried out, and the fort again demonstrated its strategic importance. First, it served as a supply base for a punitive expedition led by Col. E. V. Sumner against the Cheyennes between the Platte and Arkansas Rivers. Then, as that campaign drew to an inconclusive end, the fort became a vital base for the Army which marched toward Utah that fall to subdue the reportedly rebellious Mormons. By the next year, the Utah Campaign involved some 6,000 troops, half of whom were in or near Utah, with Fort Laramie their nearest sure source of supply.