Russian Volunteers May Go Fight in Syria as Jets Jolt Turkey

  • Turkish military says MiG-29s lock on to F-16s on patrol
  • Prime Minister Davutoglu vows to defend airspace from anyone

Wreckage of buildings at the site of the alleged Russian airstrikes targeting the Jabal al-Zawiya town of Idlib, Syria on Oct. 3, 2015.

Photographer: Stringer/Anadolu Agency via Getty Images

Russia signaled volunteers may head to Syria to fight against Islamic State and other rebels threatening Bashar al-Assad’s government, the latest sign of a deepening military involvement in a messy conflict where Russian fighter jets have already faced off with Turkish warplanes in a violation of borders.

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