One hundred years ago this summer, America was enthralled and embattled, having embarked on a crusade to transform the world proclaimed by a president who had earlier rejected any such mission for his nation.
In Minnesota, some doubted this was the proper role for America. And in July 1917, that kind of dissent was silenced in the state's most notorious demonstration of strong-arm government.
A century later, tension and confusion remain about America's place and purpose in the world. Is America a missionary nation, even a redeemer nation? Or should it be content to reform itself and be at best an example to the rest of the world — the "city on a hill" that Puritan leader John Winthrop dubbed it?
Woodrow Wilson, president from 1913 to 1921, vividly enacted within his own term in office America's historical oscillation between two poles — being sometimes inspired by a kind of calling to be active missionaries, but at other times quite content to stand back as a passive example.
Though he's the clearest embodiment of this tension, Wilson was hardly the only president to experience a change of heart about American involvement in war and nation building projects. Others include John Kennedy, Lyndon Johnson and George W. Bush.
And Wilson might soon be joined by another oscillator-in-chief.
A century after Wilson's decision to lead the United States into the "Great War" against Germany, we find ourselves wondering what to do about rivals and enemies from China, to Russia, to Iran, to North Korea, to nonstate terrorist groups. And chief among the wonderers is President Donald Trump.
Having campaigned as an "America First" critic of the missionary impulse, Trump could well find himself compelled to lead such a mission.