World War I Era Living Portraits: July, 1918. 18,000 soldiers and officers gathered at Camp Dodge, Iowa to assemble into these patriotic formations, all in an effort to gather support for the war effort. Photographers Arthur S. Mole and John D. Thomas captured images of an Eagle, the Statue of Liberty, Woodrow Wilson and even Uncle Sam. Many of the men, dressed in wool uniforms, fainted in the 105 degree heat.
H/T to Huff Po Arts for showcasing this: http://www.huffingtonpost.com/2012/02/24/mole-and-thomas-sculpture_n_1300470.html?