A Turkish forces convoy of trucks carrying tanks destined for Syria is pictured near the town of Reyhanli, Turkey, Thursday. Turkey sent in military reinforcements Thursday to beef up its positions inside Syria's last rebel bastion of Idlib, activists reported, even as the Turkish defense minister said Ankara is still trying with Russia and Iran to prevent a humanitarian tragedy in the case of a threatened Syrian government offensive. | ERSIN ERCAN / DHA / VIA AP