President Trump is already drawing headlines for his gaffes at this week’s NATO conference. But perhaps worse is his bold—but more mainstream—demand that NATO countries meet an arbitrary military spending goal. The president wants NATO countries to spend 4% of their GDP on their militaries.
In fairness, Trump didn’t dream up this daffy idea himself: Spending at least 2% of a country’s GDP on its military has been an official NATO goal since 2006, and Trump’s not the first to suggest doubling that amount. The U.S. currently funds its military to the tune of about 3.5% of its GDP, compared to only 2.3% for the next highest country by this measure: Greece.