The phrase "aggression has become a" is correct and usable in written English.
It can be used when discussing a change in the nature or prevalence of aggression in a particular context, such as society, behavior, or relationships.
Example: "In recent years, aggression has become a common response to conflict in many communities."
Alternatives: "aggression has turned into a" or "aggression has evolved into a".
In this way the Kremlin's aggression has become a narcotic that may lead to an overdose, causing it to lose control.
The strict adherence to state sovereignty as the defining factor in international law, far from being a guard against acts of aggression, has become a barrier that allows oppression to continue unchecked by the international community.
School aggression has become a major challenge to educators.
Holvey told HuffPost after the news conference that she believes Trump hasn't been held accountable because sexual aggression has become an accepted part of his personality.
In response, Dobbs Ferry middle and high schools have been surveying students this month to determine how widespread online aggression has become.
You might respond with aggression which has become a new cause for a future negative effect.
They questioned whether patient aggression had become such a part of nurses' daily practices that it was no longer perceived as a major problem anymore indicating that perhaps nurses and management in healthcare are accepting violence as tolerable.
In the grip of this doctrine, torture has become "enhanced interrogation"; wars of aggression have become wars for democracy; a distant likely enemy has become an "imminent threat" whose very existence justifies an executive order to kill.
Aggression in young people has become a major concern and self-reported aggressive and violent behaviors have risen among children.
Andrei Illarionov, once an adviser to Mr Putin and now a fierce critic, says the key factor is not whether Russia has the military capacity for a confrontation with Ukraine, but that aggression towards the neighbours has become a way of life for the Kremlin.
The new military-led regime has subjected journalists to months of passive-aggressive treatment (obtaining press credentials has become a bureaucratic nightmare) and a few episodes of outright aggression (arresting several reporters on trumped-up charges, including support for terrorism).
