If only America were fighting more wars, Russia would never have taken Crimea. That’s basically the argument John McCain made last Friday in The New York Times. “For five years,” he complained, “Americans have been told that ‘the tide of war is receding’.… In Afghanistan and Iraq, military decisions have appeared driven more by a desire to withdraw than to succeed.”

Public diplomacy matters, but it is no substitute for policy. As First Lady Michelle Obama prepares to travel to China, she should consider weaving some policy into what appears to be almost entirely a week-long public diplomacy push. With her mother and two daughters in tow, the first lady will be visiting educational institutions and historical sites and discussing education in the United States and China.

Canada’s hockey teams twice dashed the U.S.’s Olympic dreams last month, and now they have the beer to celebrate their victory. The Canadian government confirmed on Twitter they had received the payment for the bet President Barack Obama and Canadian Prime Minister Stephen Harper made on the gold medal match between the women’s teams and semifinal match between the men’s teams.

But it's nuts to talk about Ukraine the same way. Putin didn't invade Crimea because the decadent West was aimlessly sunning itself on a warm beach somewhere. He invaded Crimea because America and the EU had been vigorously promoting their interests in a country with deep historical ties to Russia.

In a thoughtful post on Ukraine and Vladimir Putin's decision to invade it, Ross Douthat suggests that the incursion was plausibly connected to White House fumbling in Syria. He begins with a nod to those who disagree. "Many writers I read and respect are dismissive of the idea that concepts like 'toughness' and 'credibility' and 'resolve' meaningfully shape the behavior of foreign actors," he writes.

The U.S. won't send a presidential delegation to the Paralympic Games in Sochi, Russia, the White House announced Monday in response to Russia's military advances in Ukraine. President Obama is still in full support of the U.S. athletes and wishes them success, White House spokeswoman Caitlin Hayden said.

Israeli Prime Minister Benjamin Netanyahu bluntly told Barack Obama on Monday that Israelis expected their leader not to compromise on their security even as the U.S. president sought to reassure him on Iran diplomacy and pressure him on Middle East peace talks.

President Obama's diplomatic effort to head off a violent breakup of Ukraine ran aground Saturday as a top U.N. envoy was blocked from a peace mission to the disputed region of Crimea and Russia's parliament, or Duma, approved a request by Russian President Vladimir Putin to send military forces to Ukraine in support of pro-Russian Ukrainians.