to which of the following can the quick American victory in the Spanish war, be attributed the Calvary unit of the Roughriders victory, expert preparation in the Pacific Caribbean, the Buffalo soldiers, victory, or the military support of the Cubans

The quick American victory in the Spanish-American War can be attributed to a combination of factors, including expert preparation in the Pacific and Caribbean, military support of the Cubans, and the Buffalo Soldiers' victory. However, the Calvary unit of the Roughriders also played a significant role in achieving victory during the conflict.