The conflict that occurred at wounded knee in 1890 can best be described as a) the first major battle in the united states civil war. b) a massacre of over 300 union soldiers by the sioux. c) the last major battle in the united states civil war. d) a massacre of over 300 sioux, including women and children.

Correct  D) A massacre of over 300 Sioux, including women and children.

The massacre at Wounded Knee in 1890 was a sad, final chapter in the United States long history of wars against Native American peoples on the North American continent.  The death toll at Wounded Knee is debated by historians, but was at least 150 and many think the total was at least double that amount (so, 300 or more).   According to the History Channel, nearly half of those killed were women and children.  The killing was carried out by the 7th Cavalry of the US Army, which lost only 25 men in the encounter.

a

Explanation:

Wounded Knee is known for being a massacre of Lakota Sioux by United States Cavalry. It is widely considered one of the last major Indian conflict in the United States.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts