US, UK, France Germany agree Russia was behind gas attack Published on March 15, 2018 at 06:58PM by By DANICA KIRKA, JILL LAWLESS and VLADIMIR ISACHENKOV, Associated Press LONDON (AP) — The leaders of the United States, France and Germany joined Britain on Thursday in blaming Russia for poisoning a former spy with a powerful nerve agent, calling the attack "the first offensive use of a nerve agent in Europe since the Second World War." In a rare joint statement, U.S. President Donald Trump, French President Emmanuel Macron, German Chancellor Angela Merkel and British Prime Minister Theresa May said "there is no plausible alternative explanation" to Russian responsibility. They said Russia's failure to respond to Britain's "legitimate request" for an explanation "further underlines its responsibility." The leaders said the use of a chemical weapon is "an assault on U.K.