Dreaming of attacking someone is considered bad as per dream meaning and interpretation. You will be facing problems with strangers. There will be unexpected problems in life. After seeing the dream a person should show patience and avoid getting angry.
Dreaming of attacking someone in strange location means travel to distant locations and some problems there.
Dreaming of attacking strangers means you will have to work hard to get the desired results and there will stiff competition or opposition.
Dreaming of attacking someone you know means you will face enemy threats but you will overcome them.
Dream of attacking someone and blood means accidents or unfortunate incidents in life.
Dream of attacking someone and you have no remorse or are happy means you will successfully take revenge.