>> Russia is stepping up its air assault on Syrian militants. Moscow's using a base in Iran for the first time Tuesday. It can handle bigger, more powerful jets than Russia's air strip in Syria. And the location means bombers can also reach their targets in less time. Reuter's Moscow correspondent, Lydia Kelly, says the move shows Russia is intent on expanding its role.
>> The recent weeks have brought the frenzy of diplomatic efforts between Russia, Turkey, and Iran. And today we actually already see the first results of those efforts. The Russian defense ministry said that it not only began stationing its bombers, its Tu-22 M3 bombers in Iran, but that those bombers have already struck militant targets in Syria.
>> Russia's defense ministry says Tuesday's air strikes hit Islamic State and other militants. That just hours after media reports that the Kremlin might team up with Washington to fight IS in Aleppo. Moscow media approaching defense minister Sergei Shoigu is saying a deal is close. There's no official confirmation from the Kremlin or the White House and the claims have some observers puzzled.
>> There are differences. Those are the same differences that have been since the beginning of the conflict. Russia supports Syrian President Bashar al-Hassad and has supported his forces in their fight against militants. The United States, on the other hand, supports some opposition armed groups which oppose the Syrian president.
>> Confusion too over Russia's role in peace talks. Moscow saying it will sit down with Syrian opposition leaders in Dohar on Tuesday. But a spokesman for the opposition's higher negotiations committee says he's unaware of any such meeting or even which opposition Moscow is referring to.