National Security Adviser Jake Sullivan has warned Vladimir Putin that there will be “consequences” if Moscow uses chemical weapons in its war on Ukraine, in the highest-level call between US and Russian officials since the start of the invasion.
Mr Sullivan spoke with Secretary of the Russian Security Council Nikolay Patrushev on Wednesday morning to “reiterate the United States’ firm and clear opposition to Russia’s unprovoked and unjustified invasion of Ukraine”, according to a National Security Council spokesperson.
