UNCLASSIFIED, NON-POLITICAL, and NON-SENSITIVE POSTS ONLYIUSSCAA Posting Guidelines
In order to wear a medal or ribbon or star it must be documented in your service record; normally on a Page #13. If not and you believe you are entitled to wear or display any award that would be by Board action.
Even though Adak is in the US it still qualifies for the Overseas Service Ribbon. I received two for my time there.