Open Image ModalRussian President Vladimir Putin (R) shakes hands with Syrian President Bashar al-Assad during a meeting at the Kremlin in Moscow, Russia, October 20, 2015. Assad flew to Moscow on Tuesday evening to personally thank Putin for his military support, in a surprise visit that underlined how Russia has become a major player in the Middle East. Picture taken October 20, 2015. REUTERS/Alexei Druzhinin/RIA Novosti/Kremlin ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS.RIA Novosti / ReutersハフィントンポストUS版より翻訳・加筆しました。▼画像集が開きます(スライドショーが見られない方はこちらへ)Open Image ModalOpen Image Modalトランプ大統領の「アメリカ・ファースト」が、いっそうシリアへの軍事行動に駆り立てる