to prevent it, to stop it
Los rusos harán lo que sea para impedirlo.
The Russians will do whatever it takes to stop it.
Deberíamos poder hacer algo para impedirlo.
We should be able to do something to prevent it.
— Mystic River (2003)
Yo no tuve las agallas para impedirlo.
I didn't have the guts to stop it.
— Algunos hombres buenos (1992)