The phrase "aggravate hostilities" is correct and usable in written English.
It can be used in contexts discussing actions or events that increase tensions or conflicts between parties.
Example: "The recent political decisions have only served to aggravate hostilities between the two nations."
Alternatives: "intensify conflicts" or "exacerbate tensions".
"These policies are, in turn, aggravating hostilities and allowing the Bush administration to justify its belligerence.
He was shocked by the "venom" in the speeches, which "aggravated the hostilities between the two communities as never before".
Those who give unconditional backing to military attacks to demonstrate America's military strength and teach terrorists "a lesson", who cheerfully discuss on television where American planes will bomb as if playing a video game, should know that impulsive decisions to engage in war will aggravate the hostility towards the west felt by millions in Islamic countries and poverty-stricken regions.
The allegations against Mr. Moore have aggravated the hostility between the populist and establishment factions of the party.
He said Labour in power would also review whether the attorney general's power to review sentences he considers unduly lenient should be extended to offences aggravated by hostility towards the victim based on their disability.
This section of the act doesn't create new offences, but imposes a duty upon courts to increase the sentence for any offence aggravated by hostility based on the victim's sexual orientation or disability.
It was all the more powerful for coming in a debate during which the Labour leadership's shameful lack of principle was brutally exposed, as the whips swithered and faffed about whether or not to abstain on a mean and confused measure that risks aggravating the hostility to migrants already stoked by Brexit.
Some youngsters think the crowd was swept by a "surge of anger" when they saw Mr. Nixon emerge from the audi torium, and that he aggravated the hostility by standing on his car and making his familiar "V" sign with both hands.
On Wednesday, a judge at Belfast Magistrates Court, ruled that they took part in a rendition of the Famine Song, aggravated by hostility, while marching in a circle at St Patrick's Church in north Belfast during a 12 July parade in 2012.
Promising to limit immigration and failing to do so will only aggravate, not alleviate, hostility to immigration.
