Hot steel on target

[seeyou8286]

Hi everyone, I stumbled upon the phrase in red below. What does it mean?

quote:
Experts say the idea, use cyber attacks to disable aircraft, make radars go blank, and even plant false intelligence in the enemy computers.

It's never gonna take the place of hot steel on target.

The Pentagon is already concerned about Chinese and Russian cyber-tricks.

 

[bibliolept]

"Hot steel" refers either to literal bullets or to literal bombs. In other words, cyberwarfare won't eliminate the need for the old-fashioned type.

 

[xplorer]

I think this phrase means that cyber attacks can't replace the old good methods of conducting military operations.