Putin clearly has high hopes for his upcoming address to the U.N. General Assembly. He wants to put the Kremlin at the center of a non-U.S. led regional coalition to attack ISIS. He is banking that engagement in Syria will help break the international isolation of Russia after the annexation of Crimea and enable the Kremlin to disengage from Eastern Ukraine with pride intact. In short, Putin wants to make Russia a respected member of the world community once again.
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普京在叙利亚的行为至少是受到叙利亚政府的邀请,而美国在利比亚和伊拉克完全是侵略。