KEY POINTS
  • Both former presidents George W. Bush and Barack Obama regularly expressed frustration with NATO member countries for not spending more of their budgets on defense.
  • Under Bush, NATO deployed to Afghanistan to defend the United States after 9/11. Under Obama, Russian aggression in Ukraine took center stage.
  • What makes Trump different is how central defense spending is to his sense of NATO's overall worth. It's an approach that's complicated by his misleading rhetoric about countries "owing" the United States money. 
President George W. Bush listens as President Barack Obama speaks in the Rose Garden at the White House in Washington, January 16, 2010.

President Donald Trump has put defense spending levels among NATO-member countries front and center this week in Brussels, where he has repeatedly berated America's NATO allies for not meeting an agreed-upon goal for each country to spend 2 percent of its annual gross domestic product on defense.

And while Trump is the first president to let defense spending levels dominate his approach to NATO, Trump is not the first president to pressure NATO countries to increase the amount they spend on their national defense.