
© Pete Souza/White House
President Barack Obama, with Vice President Joe Biden, attends a meeting in the Roosevelt Room of the White House, Dec. 12, 2013.
President Obama must decide if he will let the Syrian civil war come to an end with Russian-backed President Assad still in power or if he will escalate by supporting a Turkish-Saudi invasion, which could push the world to the brink of nuclear warWith the Russian-backed Syrian army encircling Aleppo, cutting off Turkish supplies to rebels and
advancing on the Islamic State's capital of Raqqa, a panicked Saudi Arabia and Turkey have
set up a joint headquarters to direct an invasion of Syria that could lead to a vast escalation of the war. And there's only one man who could stop them: President Barack Obama.
It is probably the most important decision Obama will make in his eight years in office since a Turkish-Saudi invasion risks a direct showdown between Russia and NATO, since Turkey is a member of the alliance.
The U.S. traditionally has held tremendous power over client states like Turkey and Saudi Arabia. So, an order from Washington is usually enough to get such governments to back down. But Ankara and Riyadh are being led by reckless men whose continued existence in power might well depend on stopping a Syrian government victory - helped by Russia, Iran and the Kurds - and a humiliating defeat of the Turkish-Saudi-backed Syrian rebels, who include some radical jihadist groups.
Comment: Further reading: Turkey predictably blames Syrian Kurds for Ankara attack, independent analysts say it was ISIS