The phrase "attack threatened" is not correct and does not convey a clear meaning in written English.
It may be intended to describe a situation where an attack is imminent or has been warned about, but it lacks clarity and proper grammatical structure.
Example: "The report indicated that an attack threatened the safety of the citizens in the area."
Alternatives: "imminent attack" or "attack looming".
The attack threatened a fragile weekend agreement that regional leaders had hoped would end two months of political turmoil in the West African nation.
This attack threatened to undermine the Saʿūd family's very legitimacy, and the family reacted by outlawing the committee and arresting its members.
The United States is wary of aggravating an already tense situation; North Korea, which denies the torpedo attack, threatened to respond to military retaliation with "all-out war".
Speaking in the debate, Sir Paul Kenny, the GMB general secretary, warned the latest "government-sponsored attack" threatened to erode the whole tenet of social Europe.
The attack threatened to upend any perception of security in the Afghan capital and, by extension, anywhere in Afghanistan as the United States moves to hand over greater security responsibility to the Afghan government.
While waiting for her race to begin in Riverside Park, she had professional help when a panic attack threatened to ruin her day: a psychologist came to her rescue.
Now Thursday's attack threatens to stress the nation's already troubled economy and its roughly $8 billion tourism industry.
That attack threatens to widen the violence in an impoverished region and drag Western governments deeper into combating an incipient insurgency.
This attack threatens the road linking Isis's Syrian capital at Raqqa to Mosul and Isis's oilfields in eastern Syria.
The attack threatens to inflame the sectarian tensions that already divide Iraq, where a Sunni minority sympathizes with Syria's overwhelmingly Sunni opposition.
These are worthy endeavours; they build up robust relationships which come into play when some terrible event, like a terrorist attack, threatens inter-religious peace.
