” Everyone else is peaceful.”
Were you in a coma during Serbia/Kosovo, Iraq, Syria, Libya, and 20 years in Afghanistan ?
all of the other major powers are peaceful and not trying to take over other countries except for Russia. Minor countries do have violent civil wars and a few may even have plans to take other countries which are relevant to themselves. And the Arabs also. I do not consider any Arab country to be a major country except in oil production.