Turkey is the one of the U.S.'s most important allies in the Mideast, but recent actions such as the downing of a Russian fighter raise important questions about its reliability as a partner.
Firmly back in control after winning snap elections, Turkish President Recep Tayyip Erdoğan and his AKP government are reducing democratic process to a rubber stamp for their undemocratic project.
These two powers have lurched between friendship and war for centuries.
In the wake of Paris and the Russian jet incident, Europe is facing the mother of all challenges over security and refugees. Where does it go from here?