Even a few hours' warning can save lives and reduce injuries.
Believe me, no warning from you could possibly save him.
In theory such warnings could save many lives.
Your brothers' warning saved you, but they could not save themselves.
I'll risk melodrama, ma'am, by saying that your warning saved my life.
If other enemies came, no warning or battle would save his people.
Only the lantern's warning had saved him, and the banditgift staff.
It's so easy to think that a warning (or two or three) will avoid a fight, save everyone's feelings and fix the problem.
The Goharans had managed almost complete surprise, but even a few minutes' warning to the camp would save a good many lives.
Even a minute's warning can save many lives.