aggression
ag·gres·sion
/əˈgrɛʃən/ noun [ noncount ]
1 : angry or violent behavior or feelings
He has a lot of pent-up aggression.
a display of aggression
behavior that is likely to provoke aggression
dangerous dogs showing aggression toward people
2 : hostile action against another country, government, etc.
military aggression
The government says that it will view any attempt to fly over its territory as an act of aggression.