Need help! In identifying sword

This is another sword found in my father in law’s attic. He was a US Army officer in Europe and Germany throughout WW2. There are no markings on the blade, only decor is on the grip, pommel and cross guard. The scabbard is mental. Also I do not know the purpose of the piece of material on the scabbard?
I greatly appreciate any and all the help in identifying this sword.
Thank you,
Steve
Semper Fi


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