The phrase "attack on a protest" is correct and usable in written English.
It can be used to describe a violent or aggressive action directed at individuals participating in a protest or demonstration.
Example: "The news reported an attack on a protest that resulted in several injuries and arrests."
Alternatives: "assault on a demonstration" or "strike against a rally".
But negotiations seemed to be derailed after conflict between the divided armed forces broke out in the capital a week ago following an attack on a protest march by security forces.
An army attack on a protest encampment last week brought only wider violence.
SANA, Yemen — The calm inside the mosque quickly turned to mayhem as the first victim of a deadly attack on a protest march was brought in on a stretcher.
It should have been an easy one for Romney, after days of shifting accounts from administration officials who initially blamed the attack on a protest over an Islamophobic film but have now conceded it was a pre-planned terrorist attack.
At least five officers were killed and seven more injured after snipers opened fire in an ambush-style attack on a protest over police brutality in downtown Dallas.
On May 14th two people were killed and 22 wounded after an attack on a PDRC protest camp.
The career diplomat also alleged he was actively discouraged by officials from asking awkward questions about why other top Clinton aides, including the UN ambassador Susan Rice, initially blamed the attack on a spontaneous protest that got out of control.
Seven months later, on Sunday 7 March 1965, John Lewis and 600 protesters were filmed being beaten as they walked across the Edmund Pettus Bridge in Selma, Alabama, at the start of their march to Montgomery for voting rights; the images of the attack on a nonviolent protest vividly dramatised the stakes of the struggle.
This repression has intensified in recent months, most notably with the attack last November on a protest camp which had been set up near the Western Sahara capital, Laayoune.
When five police officers were killed and nine wounded in an attack during a protest march in Dallas on July 7, it rattled the nation.
EGYPT has suffered its ugliest eruption of violence since the overthrow of President Hosni Mubarak in February, with an attack by security forces on a protest march in the capital, Cairo, leaving 24 dead and more than 300 injured.
