David Ignatius

U.S. adversaries exploit power gaps. It's easier for Russia to invade Ukraine with irregular forces out of uniform, the so-called 'little green men,' than to send a conventional army that would challenge NATO.

A lot of people give actors credit when they gain weight for a role in a drama when they win an Oscar, but when you're doing a sitcom, people don't give you a lot of credit, because you've got to keep your weight on for five or six years if it's successful.

Events are moving so fast and what in one moment seems impossible, the next is happening. I'm sure historians will, in time, provide theories and analysis, but for now I think most of us simply want the tide stemmed.