The sheath and hilt are reminicent of the Somalian BILLAO / Afar tribe GILLE.
Do you think the blade is locally made ? Millitary blades are often clearly marked......if the blade has age could have been a private purchase. I'm wondering ...with the conflict in North Africa during WW2....whether the blade originated from that time
I have seen a number of military knives/machetes/bayonets that have been 'Africanised'.
Regards David