In Iran, a test for a go-it-alone president

America’s allies had a hard enough time dealing with the go-it-alone policies of the George W. Bush administration, epitomized by the Iraq invasion of 2003.

But now those same allies, first and foremost in Europe and the Middle East, find themselves challenged by a go-it-alone American president in Donald Trump, who is often about as unpredictable with and independent of his own senior aides’ counsel as he is toward America’s oldest and closest friends.

That uncomfortable new world struck again like a two-by-four between the eyes when Mr. Trump ordered the killing by drone strike last week of Iranian Maj. Gen. Qassem Soleimani – considered second only to Ayatollah Ali Khamenei in terms of power and prestige in Iran – after his arrival at