query: How many served in the Rough Riders?
passage: Rough Riders
The Rough Riders was a nickname given to the 1st United States Volunteer Cavalry, one of three such regiments raised in 1898 for the Spanish–American War and the only one to see action. The United States Army was small and understaffed in comparison to its status during the American Civil War roughly thirty years prior. As a measure towards rectifying this situation President William McKinley called upon 125,000 volunteers to assist in the war efforts.[1] The regiment was also called "Wood's Weary Walkers" in honor of its first commander, Colonel Leonard Wood. This nickname served to acknowledge that despite being a cavalry unit they ended up fighting on foot as infantry.
passage: Rough Riders
Upon arrival on Cuban shores on June 23, 1898, the men promptly unloaded themselves and the small amount of equipment they carried with them. Camp was set up nearby and the men were to remain there until further orders had been given to advance. Further supplies were unloaded from the ships over the next day including the very few horses that were allowed on the journey. "The great shortcoming throughout the campaign was the utterly inadequate transportation. If they had been allowed to take our mule-train, they could have kept the whole cavalry division supplied."[2]:45 Each man was only able to carry a few days worth of food which had to last them longer and fuel their bodies for rigorous tasks. Even after only seventy-five percent of the total number of cavalry men was allowed to embark into Cuba they were still without most of the horses they had so heavily been trained and accustomed to using. They were not trained as infantry and were not conditioned to doing heavy marching, especially long distance in hot, humid, and dense jungle conditions. This ultimately served as a severe disadvantage to the men who had yet to see combat.[2]:45