Definition of "aggression"

aggression

/əˈɡɹɛʃən/

noun
countable and uncountable, plural aggressions
1. The act of initiating hostilities or invasion.
  Quotations
  Control, dispossession, violence, and tyranny are not “defensive”: they are part of an organized, ongoing aggression.
  2019 April 28, Hagai El-Ad, “What kind of democracy deports human rights workers?”, in Yoni Molad, transl., +972 Magazine‎
2. The practice or habit of launching attacks.
3. Hostile or destructive behavior or actions.
  Quotations
  The decision to impose a steel and aluminum tariff is an act of aggression which makes trade war between the two pillars of the West a grim possibility.
  2018, Michael Cottakis – LSE, “Colliding worlds: Donald Trump and the European Union”, in LSE's blog‎