Agreed... for those who have knowledge to spot things right away. What I came up with from the info provided. OK, from the UN Korean Defense Service medal/award to the right. Agreed French, right to left:  Medal of a Liberated France '39-'45, Military Health Service Honor Medal, 1939-1945 Commemorative War Medal. Then Belguim: Commemorative Medal of the War 1940–1945 and the last one ??   Quite a history with this soldier. 

They all look like French WW2 awards and that is pretty easy to research.

Vietnam cowboy rig?

One thought came to mind as they could be possibly state awards. Still VERY curious to find out what they could be. 

MWDVET: Hayes Otopaulik has two numbered discs that match what you're looking for. One near the top has the number "3," and near the bottom is another numbered "5."   https://www.hayesotoupalik.com/WW1 U.S. Collar Discs.htm

Photo from a local auction-house.    Do you see it?..

That's an interesting observation as it seems to me that Navy items; swords, daggers/dirks, headgear and uniforms specifically seem to be more expensive when it comes to other countries.  British and German come to mind initially!   Lance  

Thank you. I think Studley also had quality copies made of old US medals. 

Hi,   This is indeed a very interesting variant of the M1917, dated September 17, bearing the US markings. The only one missing from my collection, but I'll find it!

WW1 era wings were not made like that.   Fake.