The phrase "assault warning" is correct and usable in written English.
It can be used in contexts where a warning is issued regarding potential or imminent assault or aggressive behavior.
Example: "The security team issued an assault warning after reports of aggressive individuals in the area."
Alternatives: "attack alert" or "assault alert".
In my second year of teaching at Wellesley I witnessed an extraordinary young woman make her own sexual assault public by warning other students in an open letter to the college newspaper.
Many of the assaults were without warning.
Now, some experts are warning the assault on Telegram may be just a trial run.
The group of five from the University of Michigan decided to take action and create Companion after they began to receive too many crime alert emails from staff, warning them about assault, rape, and robberies occurring on campus.
China's response to the campaign has been the most forceful, warning that the assault could bring about a "humanitarian disaster".
In his e-mails to Judith Thurman, Roth encapsulates the dangers that Americans face, warning of an assault on citizens' rights, and of the United States "drowning in Trump's river of lies".
The UN human rights office, meanwhile, said ethnic Russians in eastern Ukraine had falsely claimed to be under assault to justify Russian intervention, warning that such propaganda could affect Ukraine's presidential election next month.
In 2014, for example, the legislature expanded immunity from people accused of murder or assault to people who fire "warning shots" and made it more difficult to track Stand Your Ground cases by expunging the records of people granted immunity under the law.
For several months, security officials have been warning of Islamic State-inspired assaults on British soil.
Four inmates assaulted a lone prisoner on the yard at High Desert with handmade weapons, and continued the assault despite warnings, the firing of a blank round and rubber "stingers," she said.
