The U.K.'s Minister of Foreign Affairs Philip Hammond said that Russian President Vladimir Putin is the only man in the world who can end the 5-year long bloodshed in Syria simply with a phone call.Speaking over the Russian effect on Bashar Assad clinging on to power in Syria, "There's one man on this planet who can end the civil war in Syria by making a phone call, and that's Mr. Putin," Hammond said Sunday morning while attending public broadcaster BBC's Andrew Marr Show.Answering whether Assad is winning the war or not, Hammond said that he does not think that Assad has won, and Assad's situation is not different than how it was one year ago.Minister Hammond said that the Russian air force conducts indiscriminate carpet bombing tactics in parts of civilian areas in Aleppo. "We demand that the Russians comply with their obligations under international law and their obligations under UN Security Council resolutions that they have signed up to," Hammond said.Underlining that such airstrikes has increased over the past weeks, Hammond said that the moderate opposition was weakened by the airstrikes, but not defeated.