Which was the first battle of the civil war that saw black, white and native american union troops fighting side by side.

battle of cabin creek

battle of honey springs

battle of pea ridge

battle of round mountain

The first battle of the Civil War that saw black, white and Native American Union troops fighting side by side was the Battle of Honey Springs.

Explanation:

The Battle of Honey Springs took place on July 17, 1863 in Muskogee County Oklahoma during the Civil War. This battle was mainly fought by soldiers of Native American or African American origin.

At the outbreak of the war of secession, for historical and economic reasons the Five Civilized Tribes decided to take sides with the Confederation.

In 1863 the Northerners, starting from Kansas, launched a vast military operation under the leadership of General James G. Blunt to take control of Oklahoma.

Convinced by their numerical superiority, the Southerners organized a counter-offensive led by General Douglas Hancock Cooper. In his advance to Fort Gibson (where the bulk of the northern troops were located), Cooper camped in Honey Springs, an important southern supply center, to rest his men before the clash.

On July 17, Blunt, anticipating the enemy's moves, surprisingly attacked Cooper in Honey Springs causing turmoil in the southern regiments made up of Native Americans. In the afternoon the hardest clash took place during which the southerners, poorly armed and equipped, were forced to withdraw.  The victory in Honey Springs paved the way for Blunt to Fort Smith.