TURKEY DOWNS RUSSIAN MILITARY AIRCRAFT. Turkey has shot down a Russian jet near the Syrian border, claiming the aircraft violated its airspace and potentially escalating the conflict.

Russian President Vladimir Putin called the downing of the Su-24 “a stab in the back by the accomplices of terrorists” — but Turkish officials said they issued multiple warnings before striking. NATO — of which Turkey is a member — and Russia have been at odds about how to combat the Islamic State in Iraq and Syria. Russia favors backing the regime of Syrian president Bashar al-Assad, while Turkey, the United States and its partners are firmly opposed to Assad’s rule.

FRANCE’S DIPLOMATIC BLITZ. French president Francois Hollande is in Washington D.C. Tuesday to meet with President Obama, and will be paying a visit to the leaders of Germany, Italy and Russia in the next few days, in an effort to better coordinate the international response to the Islamic State in the aftermath of the Paris attacks. Part of the effort, The Washington Post reports, is to see if France can push Russia toward the U.S. position, which is that closer cooperation with Russia is welcome only if Moscow stops helping the Syrian regime.

OBAMA’S ADVISERS ON HIS ISLAMIC STATE STRATEGY. Obama has been fielding criticism of his strategy to combat the Islamic State from both sides of the political aisle. So The Washington Post took a look at some of his former top security, military and intelligence advisers: What do they think he’s doing right and wrong? The takeaway: He should do more of the same — just a little more effectively.