John McCain and others frustrated by the need to do diplomacy and work with other countries keep putting forth the idea of a League of Democracies. That would be the guys in the white hats who would agree with the United States and offer up their armies when the United States wants to depose another dictator. Or cooperate in trade sanctions. Or something.
But it turns out that we have had The Community of Democracies since 2000. You haven't heard much about them, because they haven't done much.
The Department of State's website doesn't list the members, just mentions 100 nations and 140 nations that were invited to previous meetings. Accomplishments so far include missions to East Timor and Tblisi, Georgia. No mention of what the missions were for.
h/t to Thomas Carothers in a WaPo op-ed.