While the true cost of Russia's campaign in Syria remains up for debate, its given Moscow newfound influence in the Middle East and crucial warfighting experience.
Major General Issam Zahreddine, who led his Syrian Republican Guard brigade for three years against an ISIS siege in Deir Ezzor, was reportedly killed by a landmine.
The Syrian military's Fifth Assault Corps, known as "ISIS Hunters," has made ISIS an offer it can't refuse.
The 2,000-year-old Lion of al-Lat statue is a symbol of peace, but its restoration is only a reprieve from the death and destruction Palmyra has witnessed.
Two rivals are battling ISIS in the jihadists' final stronghold of Deir ez-Zor. One seeks to return Syria to its former self; the other wants more power for Kurds.
Russian and U.S. allies are battling insurgents and jihadists trying to topple the Syrian government, but the latter wants to reshape the nation.
Hezbollah Secretary General Hassan Nasrallah declared August 28 to be Lebanon's greatest victory since expelling Israel in 2000, and thanked Syria for its support.
After reportedly doubling their control of the country, Syrian troops conducted a nighttime raid behind enemy lines with the help of Russia.
The Syrian military and Hezbollah joined forces to take down the Islamic State militant group (ISIS) and Hayat Tahrir al-Sham on Lebanon's restive border.
The three countries all want a stake in Syria's future and appear willing to secure it by making long-term military commitments.
Russian fighters successfully targeted Islamic State militant group positions in Syria with Moscow's newest Kh-101 long-range cruise missiles.
Syria's President Bashar al-Assad made a series of public appearances, surrounding himself with military officials and supporters amid U.S. threats.
A Russian fighter jet reportedly buzzed a U.S. reconnaissance plane near the Baltic Sea, hours after the U.S. shot down a drone in Syria.
Russia severed a military hotline with the U.S. and has said it will turn its air defenses on any U.S. plane that crosses battle lines in Syria.
Buses full of rebels began leaving the Barzeh district of Damascus as the Syrian government announced hopes for peace between factions.
The U.S.-backed, majority-Kurd Syrian Democratic Forces and the Russia-backed Syrian military are separately threatening ISIS's final major strongholds.
The U.S. denied Syrian army reports that a Washington-led coalition struck a cache of toxic substances used by the Islamic State group, killing "hundreds."
Earlier, state television said several major explosions hit Mezzah military airport compound near Damascus and ambulances were rushed to the area, without giving details.
The rebels said the army was emboldened by gaining full control of Aleppo city and was seeking to force them to either leave or face all out war.