Peoria County veterans who lost their lives in the line of duty during World War One and World War Two are honored by name. In World War One, the United States' involvement lasted from 1917 to 1918; Peoria County had 5,500 total service members and lost 211 lives, while the United States had 4,734,991 total service members, 53,402 battle deaths, 63,114 other deaths in service outside the theater, and 204,002 non-mortal wounded. In World War Two, the United States' involvement lasted from 1941 to 1945; Peoria County had 23,010 total service members and lost 662 lives, while the United States had 16,112,565 total service members, 291,557 battle deaths, 113,842 other deaths in service outside the theater, and 671,846 non-mortal wounded.