Ukraine denies involvement in Syrian rebel counteroffensive
Russian military capabilities stretched thin across global conflicts, says U.S. general
Russia faces setbacks in Syria, replaces commander amid rebel offensive
Russia sends Syrian mercenaries into Ukraine assaults, promising jobs and citizenship
HUR attacks Russian base near Aleppo — report
Ukrainian special forces strike Russian base in Syria after Putin-Assad meeting — video
Israel targets Iran on Ayatollah's birthday, Tehran weighs response options
Iran vows military response to Israel for consulate bombing