Common Access Cards (CAC)
Most .mil websites that require login use CAC as their primary method if identity verification. When accessing these websites, users should use their normal CAC certificate vice their EMAIL certificate. Known exceptions to this are the Navy Reserve Homeport and any Outlook Web Access (OWA) email system. For amplifying information about CAC, refer to the official DoD CAC website here.
This is a video produced by Navy Resources to help users with using CAC on a Mac. It simplifies the process annotated on MilitaryCAC.