The Russians and the Iranians are supporting Syrian President Bashar al-Assad and fighting a host of extremist organizations ranging from Al-Qaeda to the Islamic State (IS). But each country has a different view of what a post civil war Syria might look like. The Russians want a centralized and secular state with a big army. The Iranians don't think much of "secular," and they favor militias, not armies.
Turkey, Saudi Arabia, Qatar, and most of the other Gulf monarchies are trying to overthrow the Assad regime, and are the major supporters of the groups Russia, Iran and Lebanon's Hezbollah are fighting. But while Turkey and Qatar want to replace Assad with the Syrian Muslim Brotherhood, Saudi Arabia might just hate the Brotherhood more than it does Assad. And while the monarchies are not overly concerned with the Kurds, Turkey is bombing them, and they are a major reason why Ankara is so deeply enmeshed in Syria.
The U.S., France and Great Britain are also trying to overthrow Assad, but are currently focused on fighting the IS using the Kurds as their major allies -- specifically the Syrian Kurdish Democratic Party, an offshoot of the Kurdish Workers Party that the U.S. officially designates as "terrorist." These are the same Kurds that the Turks are bombing and who have a friendly alliance with the Russians. Indeed, Turkey may discover that one of the price tags for shooting down that SU-24 is the sudden appearance of new Russian weapons for the Kurds, some of which will aimed at the Turks.
The Syrian war requires a certain suspension of rational thought.
For instance, the Americans are unhappy with the Russians for bombing the anti-Assad Conquest Army, a force dominated by the Nusra Front, al-Qaeda's franchise in Syria. That would be the same al-Qaeda that brought down the World Trade towers and that the U.S. is currently bombing in Yemen, Somalia and Afghanistan.
Suspension of rational thought is not limited to Syria.
A number of Arab countries initially joined the U.S. air war against the Islamic State (IS) and al-Qaeda, because both organizations are pledged to overthrow the Gulf monarchies. But Saudi Arabia, Jordan, the United Arab Emirates and Qatar have now dropped out to concentrate their air power on bombing the Houthis in Yemen.
The Houthis, however, are by far the most effective force fighting the IS and al-Qaeda in Yemen. Both extremist organizations have made major gains in the last few weeks because the Houthis are too busy defending themselves to take them on.
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