[Vladimir] Putin spoke unabashedly about the importance of national sovereignty in Syria, a concept apparently near and dear to his heart, unless it comes to the sovereignty of Georgia, Ukraine or any other country in which he intervenes. Then he offered his cooperation, but without making any concrete concessions at all. And he didn't have to, either. He knows what he can rely on. He has assets that are more valuable than words: He has tanks in Ukraine, fighter jets in Syria - and Barack Obama in the White House.