One month into the unusual presidency of Donald Trump, his most senior Cabinet members were deployed to Brussels, Bonn and Munich this past week to reassure nervous Europeans that everything would be OK.

The Europeans heard from Defense Secretary James Mattis that the NATO military alliance was not "obsolete" after all, despite Trump's repeated suggestions to the contrary.

And they were told by Vice President Mike Pence that Russia would be "held accountable" for its actions in Ukraine, despite Trump's friendly overtures to Russian President Vladimir Putin.