In a book on the Gatling gun by Julia Keller, she writes that during the Spanish-American War, Roosevelt exclaimed, "It's the Gatlings, men, our Gatlings!" Did this gun raise the American's chance of winning the war? If you could give me as much information as possible, that would be great!

It may not have won the war but it won this battle. Roosevelts quote is in the text. Gatling (http://www.spanamwar.com/Gatling.htm)