A NATO Crisis

Of President Donald Trump’s explosion at Angela Merkel’s Germany during the NATO summit, it needs to be said: It is long past time we raised our voices.

America pays more for NATO, an alliance created 69 years ago to defend Europe, than do the Europeans. And as Europe free-rides off our defense effort, the EU runs trade surpluses at our expense that exceed $100 billion a year.

To Trump, and not only to him, we are being used, gouged, by rich nations we defend, while they skimp on their own de...