MOSCOW, April 16. /TASS/. USA, France and UK strikes on Syria, backed by the President of Turkey, Tayyip Erdogan, managed to split the relationship of the guarantor countries of the Astana process. This opinion was expressed on Sunday in comments to TASS scientific Director of the Institute of Oriental studies (IOS) of the Russian Academy of Sciences, the expert of the discussion club “Valdai” Vitaly Naumkin.