Well, that article is as clear as mud. Nowhere does it explain how a more precise clock can eliminate the need for satellite navigation which, it correctly points out, is vulnerable to jamming. If I put an extremely accurate clock inside a box and then move it to the other end of the street, how would it figure out (without external jammable signals) that I have done so?
Perhaps more accurate clocks on the satellites would help, but I get the impression that current GNSS inaccuracy is dominated by atmospheric propagation errors rather than clock accuracy. However, the article seems to imply that these wonder clocks will be deployed on the thing which needs to do the navigating (tank, ship etc).
Some of the other points are also rather suspect, for example:
Enhance the accuracy of advanced weapon systems, like guided missiles, which rely on accurate timing to calculate trajectories and coordinate attacks.
Just how well damn coordinated do these attacks need to be? Surely, current clocks can organise for your missiles to arrive at the target sufficiently close together?
...especially in areas like cyber warfare, where milliseconds can make a difference.
Surely we already have clocks that can remain accurate to milliseconds over the duration of a typical war?