So, you're a military retiree living in Korea and turning 65 years old. Here are some things you need to consider. You can also review this document for good info: TRICARE & MEDICARE: Turning Age 65
Review the Family Protection Plan document and other Survivor Planning guides, which has a lot of checklists and information. Make sure all bank accounts have direct beneficiaries. The beneficiary need only go to the bank with your death certificate and an ID of their own.
Do NOT forget those insurance policy copies and your state registered DD214!! You also need to send your DD214 to the Veterans Cemetery AHEAD OF TIME. They will send a letter back. That letter needs to be included in your veteran binder with all your DBQ’s, code rating sheet or rating decision letters. There’s so much we don’t think about.
Assistance is available in many different venues. One such is the Retiree and Widow Support Offices page here where there are retiree volunteers and their many contacts who have been there, done that, and have vast amounts of experience. Don't hesitate to ask.