UBB.threads Forums General Militaria United States Militaria Recent Vet P/U what is it?

All I know about this dagger or boot knife was that it was picked up in the Philippians during the war. What did I get? I know nothing about Japanese militaria and took the vet on his word. I am assuming that it is Japanese since he just told me that it came from the Philippians. The sheath has much to be desire but the knife itself is in great condition. Thanks for any help.