The U.S. is fortunate that Russia is not intent on undermining our interests, which makes it a little odd that so many American hawks insist that this is so and sometimes seem eager to make it so. Consider Syria. Syria hawks see Russian opposition to Western and Arab intervention in the country as proof of Russian antagonism to America, but Russia is at most half-heartedly defending the status quo and continuing its formal policy of objecting to outside interference in other states’ internal affairs. It has committed itself to nothing except occasionally vetoing a resolution at the U.N., and if...