Never mind that U.S. strikes on Syria would be useless and dangerously escalate tensions with Russia, they wouldn’t be legal.

Turkish allegations of Saudi, Emirati and Egyptian support for the outlawed Kurdish Workers Party (PKK) threaten to turn Turkey’s military offensive against Syrian Kurds aligned with the PKK into a regional imbroglio.

Turkey’s involvement in the Syrian conflict has eroded the country’s diplomatic position for a number of reasons.

Fighting may continue for years, but Moscow’s forces have shored up Assad’s hold on the country.