MOSCOW - Russia warned on March 21 that it was prepared to act unilaterally in Syria against groups that it said were breaking the cease-fire there, injecting a volatile new element into a conflict that has been calmer in recent weeks.
Washington Post: Russia, with an eye on US, threatens to bomb Syrian cease-fire violators
Russian soldiers work behind their screens on March 17, 2016 in Russia's reconciliation center as they monitor the truce in Syria at the Hmeimim air base in the Latakia province. \u200f
