Transatlantic Sensitivities The frustration between the U.S. and Europe runs both ways, but the calculation is still one of mutual need, as articulated by American Secretary of State Marco Rubio at last month’s Munich Security Conference. Two recent data points will exasperate the White House. First is Spanish Prime Minister Pedro Sánchez’s refusal to allow the use of his military bases by American forces attacking Iran. He blamed the U.S. for violating international law. Madrid recently agreed to finally meet its minimum 2 percent of GDP commitment for defense spending as a member of NATO, but then opposes putting European troops in Ukraine.  On the trade front, Brussels complained loudly about Trump’s tariffs...