In July, 1863, a regiment of cavalry was authorized by the secretary of war to be raised by Major E. A. C. Hatch, for duty on the northern frontier. Several companies were recruited and marched to Pembina, on the extreme northern border, where they performed valuable services, and suffered incredible hardships. The regiment was called Hatch's Battalion. CAMPAIGN OF 1864. The government very wisely decided not to allow the Indian question to rest upon the results of the campaign of 1863, which left the Indians in possession of the country west of the Missouri, rightly supposing that they might construe their escape from General Sibley the previous year into a victory. It therefore sent out another expedition in 1864, to pursue and attack them beyond the Missouri. The plan and outfit were very similar to those of 1863. General Sully was again to proceed up the Missouri with a large command, and meet a force sent out from Minnesota, which forces when combined were to march westward, and find and punish the savages if possible. The expedition, as a whole, was under the command of General Sully. It consisted of two brigades, the first composed of Iowa and Kansas infantry and cavalry, and Brackett's Battalion, to the number of several thousand, which was to start from Sioux City and proceed up the Missouri in steamboats. The second embraced the Eighth Regiment of Minnesota Volunteer Infantry, under Colonel Thomas, mounted on ponies; the Second Minnesota Cavalry, under Colonel MacLaren; the Third Minnesota Battery, under Captain Jones. The Second Brigade was commanded by Colonel Thomas. This brigade left Fort Snelling on June 1st, and marched westward. General Sibley and staff accompanied it as far as Fort Ridgely. On the 9th of June it passed Wood Lake, the scene of the fight in 1862. About this point it overtook a large train of emigrants on their way to Idaho, who had with them 160 wagon loads of supplies. This train was escorted to the Missouri river safely. The march was wearisome in the extreme, with intensely hot weather and very bad water, and was only enlivened by the appearance occasionally of a herd of buffalo, a band of antelope, or a straggling elk. The movements of the command were carefully watched by flying bands of Indians during its whole march. On July 1st the Missouri was reached at a point where now stands Fort Rice. General Sully and the First Brigade had arrived there the day before. The crossing was made by the boats that brought up the First Brigade. The column was immediately directed toward Cannon Ball river, where 1,800 lodges of Indians were reported to be camped. The Indians fled before the approaching troops. On the last of July the Heart river was reached, where a camp was formed, and the tents and teams left behind. Thus relieved, the command pressed forward for an Indian camp eighty miles northward. On the 2d of August the Indians were found in large numbers on the Big Knife river, in the Bad lands.