What is this badge?

Bonjour again,
What is this beautiful badge??
It most propably has something to do with the Medaille Militaire of 3 Repulic but what?

Cordialement, Harri

Bonsoir Harry,
Insigne des médaillés militaires III° république

_________________
Amitié légionnaire
fred

COLLECTIONNEUR
INSIGNES LEGION ETRANGERE
US SHOULDER SLEEVE INSIGNIA
DECORATIONS USMC, US ARMY

Merci Fred coucou1

for answer.

What is the purpose for this badge?
Is it worn in civil clothes by those who have received MM, or is it a badge of an association.

Cordialement, Harri