The phrase "a successful intervention" is correct and usable in written English.
It can be used in contexts where you are discussing the effectiveness of an action taken to improve a situation, particularly in fields like healthcare, psychology, or social work.
Example: "The team was pleased to report that a successful intervention led to significant improvements in the patient's mental health."
Alternatives: "an effective intervention" or "a positive intervention".
And what would a successful intervention be?
Carney and co can take some small credit for a successful intervention but their short-term forecasting misjudgment remains severe.
It did push through what is seen as a successful intervention in the Korean war while the USSR was away from the table.
BRITAIN is recovering from its painful years of military exertion in Iraq, and celebrating what looks to have been a successful intervention in Libya.
Peace efforts have made uneven progress since July 2013, when an 11,000-strong UN peacekeeping force – Minusma – was deployed following a successful intervention by France the previous year.
Two years after what was supposed to have been a successful intervention in Libya, the country is again on the brink of a new civil war, its prime minister begging to be rescued from the backlash over another US kidnapping.
For the European Central Bank, which assumed power when the euro was born on Jan . 1 , 1999a successful intervention is crucial for its credibility and that of the currency itself.
According to Westminster's council, which has been running targeted and intensive family projects for years, a "successful intervention" with a family beset by multiple problems, such as drug abuse, poor mental health and domestic violence, costs £20,000.
Vice-President Biden: After our action in Libya, you described it as a model of a successful intervention, with no American lives lost and us sharing the burden with NATO.
Since it was easy enough to see from an early age that I was going to be trouble and cause trouble, a successful intervention in my childhood would have cost little and saved the nation £2m.
Given the failed states and the civil wars gripping Afghanistan, Iraq, Libya, and Syria, I asked Graham for an example of a successful intervention that would bolster his case for a more hawkish foreign policy.
