The phrase "a string of clashes" is correct and usable in written English.
It can be used to describe a series of conflicts or confrontations that occur in succession.
Example: "The region has experienced a string of clashes between rival factions over the past few months."
Alternatives: "a series of conflicts" or "a succession of confrontations".
Hundreds of young protesters have been imprisoned in a string of clashes with security forces.
At least seven people have been killed in a string of clashes in the Nile Delta and Alexandria in the last three days.
They could either limit themselves to verbal protests and risk the permanent loss of Abyei or try to retake the area by force and risk causing mayhem: a new civil war or at the very least a string of clashes along their northern border.
Simon Cowell's talent show has been a staple of ITV's Saturday evening schedule since launching in 2004, but a string of clashes with fixtures in rugby union's world cup event will result in the main live show moving to Sunday nights for at least some of 2015's 12th series.
A string of clashes followed, but this latest incident, involving direct confrontation between the northern and southern armed forces, is by far the most serious.
She left a controversial position as Sports minister after she had a string of clashes with sports journalists in the country.
This follows a string of violent clashes in Britain's gardens caused by what has become known as 'hedge rage'.
What else, yawn the cynics, is new?France has been an awkward member of the western alliance ever since the end of the second world war, witness a string of diplomatic clashes with America over the Suez campaign in 1956; over France's colonies in North Africa and elsewhere; over France's insistence on its own nuclear force de frappe; and over its decision to leave NATO's military structure.
The shooting occurred amid a string of other clashes this weekend across Israel.
It follows a string of intensified clashes in Aleppo this week after Russia's unilateral cease-fire ended Saturday night.
But in the wake of a string of deadly clashes and terrorist attacks, including a mass slashing, that Chinese authorities have blamed on Uighur separatists and religious extremists, the handcrafted knives have taken on a deadly cast.
