Based on its placement in a notebook full of clippings, I believe this article from a Seneca County, New York newspaper was probably published around March, 1863. Regular U.S. Infantry had come back from the West to fight the rebels in the East.
Return of a Regular.
JOSEPH CORY, of this village, returned home on Wednesday morning, after an absence of five years in the regular service of the Government. He enlisted in the 10th Regiment of Infantry during the progress of the Mormon war, and has served a greater part of his time on the Western frontier. His Regiment was sent to Washington during the summer of 1862, and now forms a part of the army of the Potomac. He has seen a great deal of hard service, and has earned for himself the praise of being a brave and efficient soldier. He is looking remarkably well and rugged.
The Utah War:
was an armed confrontation between Mormon settlers in the Utah Territory and the armed forces of the United States government. The confrontation lasted from May 1857 until July 1858. While there were casualties, mostly non-Mormon civilians, the “war” had no battles, and was resolved through negotiation.
The U.S. 10th Infantry was constituted in March 1855. By January 1862 some companies had already returned East to help defend Washington. Some of the companies that remained out West fought in the February 1862 Battle of Valverde in Arizona territory against a Confederate force led by Henry Hopkins Sibley. The 10th fought in the European Theater in World War II.
Utah’s Great Salt Lake, c.1875
