But Thursday's military mission was no ordinary one. It has repeatedly fired salvoes of such missiles, from both the sea and mainland Russia.
The destruction of Daesh positions by a salvo of Kalibr cruise missiles launched by two Russian submarines in the Mediterranean on Thursday contributed heavily to the Syrian Army's efforts to liberate the Deir ez-Zor province, a military expert told Radio Sputnik.
The related war in Syria has its own twists.
Soldiers from the besieged garrison exchanged hugs with the liberating force.
The city, the largest in eastern Syria, has been caught up in the civil war engulfing the country. "This city and province are very important for us, as they are located near the border with Iraq".
The Russian- and U.S. -backed campaigns against Islamic State in Syria have mostly stayed out of each other's way as the sides seek to avoid conflict, with the Euphrates often acting as a dividing line between the sides. He said that so far the SDF fighters have met "light resistance".
On September 12, the Russian military said that the Syrian army had regained control of 85 percent of the country's territory.
"I'll just tell you that the plan is not to go into Deir Ezzor city but there (are) plenty of ISIS fighters and resources and leaders that continue to have holdouts throughout the middle Euphrates River valley", Dillon said, according to Reuters. Two submarines emerged and were visible on the horizon shortly after.
Activists said late on Wednesday that the buses had made it through. Following the siege breach on Sept. 5, roads are now accessible and government trucks have already delivered some aid.
"We're not going to be satisfied until we see a strong and stable Syria". Opening the land route to the city allowed a reliable supply route to be established.
Later, the U.S-led coalition said it had ended surveillance of the convoy after a Russian request, as Syrian troops advanced against ISIS in eastern Deir el-Zour province.
In August, troops were able to besiege a wide area controlled by the group that has been shrinking ever since.
The Syrian Arab Red Crescent is currently distributing the supplies from UNFPA and its partners, as well as items received from earlier airdrops.
Frolov points to another issue, raised by the French journal Intelligence Online a while ago, about the dispute between Lt. Gen. Sergei Rudskoy, chief of the Russian Defense Ministry's Main Operational Directorate, and Quds Force commander Maj.
Turkey regards the YPG as the Syrian branch of the PKK.
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