STORY: Lavrov said the United States and NATO were obsessed with the idea of inflicting "strategic defeat" on Russia and there were risks in such confrontation that could lead to an increased level of nuclear danger.
The United States and its allies say they are helping Ukraine to defend itself against Russian aggression and that it is Russia that is aggravating East-West tensions, including by issuing repeated warnings about the danger of a nuclear conflict.
Lavrov said: "Of particular concern is the fact that it is the 'troika' of Western nuclear states that are among the key sponsors of the criminal Kyiv regime, the main initiators of various provocative steps. We see serious strategic risks in this, leading to an increase in the level of nuclear danger."
The three Western countries with nuclear weapons are the United States, Britain and France.
