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  Syrian ceasefire on brink of collapse: UN envoy

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  UN envoy urges Obama, Putin to save Syria truce, peace process

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  Syrian rebels launch new battle, accuse U.N. envoy of bias

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  U.N. envoy says Syria peace talks may be delayed, pressure needed

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  Saudi UN envoy urges Iran to mend ties

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  'We are not natural-born enemies of Iran,' Saudi U.N. envoy says

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  Daniel Craig gets 'license to save' as U.N. envoy on mines

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  Russia announces aid operation for Syria's besieged Aleppo

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  New Iran UN envoy appointee expected to get U.S. visa -sources

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  US-backed forces battle IS near Syria stronghold, Iraqi city

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  Trump's 'America first' speech alarms U.S. allies

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  Aleppo battles cast shadow over Syria peace talks

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  Syrians vote for parliament as diplomacy struggles

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  Syrian army sends reinforcements to Aleppo

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  Syrian PM says Russia to back new Aleppo attack; opposition says truce near collapse

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  Bomb explodes in Libyan town as U.N. envoy meets PM Thinni

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  Syria's Assad says military gains will speed up political deal

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  MH17 families still want answers

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  Syrian army retakes Palmyra citadel from Islamic State

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  Syrian forces fight their way into Palmyra, as Kerry and Putin hail thaw

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