Turkey has long sought a buffer zone in northern Syria. Critics say it is exploiting the US-led battle against Islamic State militants to strike at Kurdish forces in Iraq and Syria that it sees as a threat to Turkish rule.
The airstrikes were prompted by intelligence indicating a likely Islamic State attack. The US said a deal has been reached with Turkey to use a key airbase.
A round-up of global commentary for the June 8, 2015, weekly magazine.
For years, Ahmet Davutoglu worked to foster friendly ties across the Middle East. Experts say that quickly changed in the aftermath of the Arab Spring uprisings in 2010.
Under President Erdogan, Turkey has taken a more active role in the Middle East and raised alarms it may no longer be a reliable Western ally.