You don’t have to listen to the “do something” crowd. These are the same people who brought you the wars in Iraq and Afghanistan, among other greatest hits. These are armchair “experts” convinced that every international problem is a vital interest of the US; that the maintenance of “credibility” and “strength” is essential, and that any demonstration of “weakness” is a slippery slope to global anarchy and American obsolescence; and that being wrong and/or needlessly alarmist never loses one a seat at the table.
The funny thing is, these are often the same people who bemoan the lack of public support for a more muscular American foreign policy. Gee, I wonder why.