If you were afflicted with the military and were planning on using these sites on your own hardware regularly, you'd install their certificates: https://iase.disa.mil/pki-pke/Pages/tools.aspx
And clicking 'Advanced' didn't allow the option of continuing!
> When Google Chrome tried to connect to www.sddc.army.mil this time, the website sent back unusual and incorrect credentials. [...] You cannot visit www.sddc.army.mil right now because the website sent scrambled credentials that Google Chrome cannot process.