An example?
In Vietnam the US airman who became captive were interrogated regarding their units, tactics, etc. That interrogation included brutal torture, which would have broken anyone.
All of 'em gave up all the information they had. (As would I under those circumstances.)
That information assisted the North Vietnamese to develop more effective defensive measures and focus their sabotage.
Was it wrong for them to torture those prisoners?
Was it proper for them to torture them?
Arf