Comment by obviouslynotme

There are MANY problems that are too politically or practically difficult to tackle for the US Military and personal cellphones aren't close to the top ten. It's far easier to force everyone to register their cells to be automatically blacklisted from data collection than it is to justify tens of thousands of NJPs and court martials every year, many of which will include officers and senior enlisted.

The US Military doesn't win through stealth or secrets either. Their advantage from the beginning until now has always been funding and logistics. With the Internet, satellites, and now AI, OPSEC is a fool's errand outside of very specific operations anyhow.