For the West to become embroiled with ground troops would be a disastrous mistake.
But that would be a disastrous mistake, morally and politically.
I think she made the disastrous mistake of falling in love with him.
"In truth, I have made a series of disastrous mistakes, including my involvement with those girls."
This was a disastrous mistake, as most of us soon realised.
If so, he is making a disastrous mistake, one that will take many down with him.
This was a disastrous mistake, but it is in the process of being corrected.
Once they make a few disastrous mistakes, they'll prefer to use our people.
As a result, the country was spared what would almost certainly have been a disastrous mistake.
Governor Bush's move toward the extreme religious right is now generally seen as a disastrous mistake.