Answer:
belligerence.
Explanation:
In psychology, the term "belligerent" is described as an individual, country, or group, etc that behaves in a hostile or aggressive manner, for example, a person who is being involved in "combat".
In other words, a belligerent person is one who always wants to engage oneself in a war-like situation or ready to fight or argues with another person.
Belligerence is the process that involves a belligerent person.
In the question above, Amy is exhibiting belligerence.
