Yes the Marine can wear the Medal....and will do so proudly. The question is where it would be worn in the "Stack" as I think Foreign Awards are worn below American Ribbons.
g. Foreign military decorations. Personnel who are specifically authorized by law to accept decorations from foreign governments may wear them in the order of their receipt after all U.S. decorations, the Good Conduct Medal, campaign
and service medals, and service and training ribbons. (See chap 9, AR 600𤾄2, for application procedures to request authorization to accept and wear foreign decorations.) Personnel may not wear any foreign decorations on the uniform
unless at least one U.S. decoration or service medal is worn at the same time. Personnel will not wear foreign awards that do not conform to the standard U.S. size ribbon bar or medal.