The efforts deployed by the European Union Troika, Russia, the U.S. and China to settle the Iran nuclear problem will come to naught if Iran is isolated, said Russian Foreign Minister Sergei Lavrov. \"All the efforts that are being made by the six countries to draw up proposals [to Iran in exchange for stopping uranium enrichment] will be senseless if we forget about Iran,\" Lavrov said at a press conference in Doha on Tuesday, commenting on a Los Angeles Times\' report alleging that the U.S. has started implementing a deterrence strategy in relation to Iran and other Gulf countries. Lavrov said if the report was true, such steps \"would contradict the efforts that are being made now.\" Iran should respond to the proposals developed by the six countries, Lavrov said. \"We expect that Iran\'s response will be constructive,\" he said. (Interfax)