On Thursday, Barack Obama was talking tough about Russia. His secretary of state, John Kerry, issued an ultimatum to Vladimir Putin. If Putin did not stop his troops massing on the Ukrainian border, “there will be a very serious series of steps on Monday.” That’s what he said on Thursday. On Friday, he capitulated. Kerry capitulated, that is. Not Putin. On Friday, Kerry not only erased any threat he had made. He positively made concessions to Russia. He said that Russia has “legitimate interests in Ukraine.” As in, Russia legitimately has as say in a foreign, sovereign, independent country. Kerry...