<br /> On Monday, the chief of Britain’s foreign intelligence service issues a stern warning to the Kremlin.<br />MI6 chief Alex Younger told Russia not to underestimate the West.<br />The warning comes after a brazen nerve agent attack on a retired double agent in England.<br />The attack stoked fears about Russian covert activity abroad.<br />Younger has only given two major speeches in his career as MI6 Chief.<br />This speech ranged across the global threats faced by Britain as it prepares to exit the European Union in less than four months.<br />Russia is the only national adversary named in his scripted speech. <br />
