Political divide in Iranian leadership behind abrupt end of operation.
Ankara vowed to "cleanse" border area of IS after Gaziantep bombing.
Fierce confrontation in Hasaka town after Russian mediation efforts fail.
Israeli military claims 14 Gaza rockets have hit the country since January.
Some diplomats doubt Moscow might use pause for strategic advantage.
Amnesty report gives chilling account of rights abuse by Assad government.
Detention a part of Tehran's efforts to rein in growing "Western Infiltration."
Russian Defense Minister claims plan is in active phase of negotiations.
M.S.F. says it is the fourth attack on a facility run by the group within a year.
More than 25 fighters killed and 25 others wounded near Atmeh border.
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