The Number of Regiments Units assigned to duty with the US army spiked immediately after the Civil War, but leveled off after 1869.
The Number of Men Even though the number of regiments in the army leveled off, the actual numbers of troops in the US army declined steadily throughout the 1870s.
Change in Tactics The US Army in Texas gives up merely chasing Indians, as it had done most of the time before the Civil War, to launching active expeditions against populations out of compliance with the various treaties. Scouting and campaigning became the most common application of military strength.