The page for Salesforce Military is located here: https://veterans.my.site.com/s/
The Salesforce Military Contact Us link is here: https://veterans.my.site.com/s/contact-us
If you have military affiliation, and haven't done so already, be sure to take a look at and register with the Salesforce Military program, which offers all kinds of great resources for Salesforce certification, networking, and career building.
Also, for opportunities to start building Salesforce work experience, check out the Salesforce fellowship program at Hiring our Heroes.
Register for Trailhead Military
The first step to get started is to register on salesforce.com/military. Click Sign Up to access the registration form. First, click Verify with TroopID to confirm your military status. Then, fill out some information about yourself and click Submit Registration.
Sign Up for Trailhead Military
https://trailhead.salesforce.com/content/learn/modules/vetforce/vetforce-signup