ADSB Exchange Global Radar is a handy tool for tracking military aircraft. Although not all military aircraft are displayed, this can be a useful resource for finding out what is flying, and where they may be headed, including transiting to the Mach Loop.
Watch our demo animation above to learn how to enable the Military-only filter
Link to ADSB Exchange Global Radar
They also kindly have a page that displays currently airborne military aircraft in a tabular format, here is the link.