Mezue ahịrịokwu na-esonụ: Na mmalite nke esemokwu na Spain, e buliri ya n'ọkwa brigadier general nke ndị ọrụ afọ ofufo na May 1898. Na Cuba n'oge agha ahụ, o duziri otu n'ime ndị agha ịnyịnya abụọ nke so na Ngalaba Ndị Agha Ịnyịnya n'okpuru Major General Joseph Wheeler. Brigade nke Young gụnyere Theodore Roosevelt's Rough Riders, 1st US Volunteer Cavalry Regiment. N'ọnwa Julaị afọ 1898, mgbe ndị Amerịka meriri ndị
Agha nke San Juan Hill, Young weghaara iwu nke Wheeler's Cavalry Division ma mee ka ọ bụrụ onye isi ndị ọrụ afọ ofufo mgbe ọ na-achị otu ngalaba ahụ na Cuba mgbe Santiago Campaign nke Spanish-American War. N'otu afọ ahụ, Young ghọrọ onye otu ndị agha nke Missouri Commandery nke Military Order of Foreign Wars.