This is the a memorial to the servicemen of Platte County, Wyoming, who served in the Vietnam and Korean Wars.
Oddly, it depicts a solider carrying a M1917 Enfield, which hadn't seen service since World War Two, and which is much more associated with World War One.. Additionally, the soldier depicted is wearing the short jacket usually referred to as an "Ike" Jacket, which came in right at the end of World War Two and which went out of service in the 1950s.
The memorial is located at the Platte County Public Library.