Just as dogs and other animals attempt to deter people or other animals from entering their territory, governments can quell international aggression with a display of military might. The technique has been used for thousands of years and still remains effective today. Sometimes the best way to maintain peace is to have a strong army.
Hopefully a show of nuclear strength is enough to quell aggression without having to actually respond to it with more aggression. Most nations regard nuclear weapons as weapons of last resort, so hopefully showing the rest of the field US strength will discourage or help halt some fighting. I can't think of much else that would be more appropriate or more effective, besides deploying troops or using drones...
Yes, a show of nuclear strength is sometimes the best way to quell an aggression. You do not know what the other side may be thinking so it is good to use a show of nuclear force to quell the aggression. Sometimes cooperation does not always work. In these instances, there is a need to show strength.
Showcasing nuclear strength is not a way to quell international aggression. The United States will never use nuclear weapons on another country. Therefore, it is pointless to use bombers as a show of force to subdue aggressors. Instead, the United States should be developing a comprehensive strategy with global partners to stand up to international aggression.