What is the TRICARE 20 20 20 rule?

What is the TRICARE 20 20 20 rule?

20/20/20: Under the 20/20/20 rule, you keep TRICARE health care benefits if you were married to the service member for at least 20 years, the service member served in the armed forces for at least 20 years, and the marriage and the period of service overlapped for at least 20 years. Mar 18, 2019