At the end of 2008, the US-Russian relationship had slipped to its lowest level since the Soviet Union collapsed in 1991, with new complications exacerbating relations between Europe and Russia. The agenda is dominated by difficult issues such as strategic nuclear arms reductions; missile defence; NATO enlargement and NATO-Russian relations; energy; Iran; and conventional arms control. Speaking in Munich in February 2009, US Vice President Joseph Biden went so far as to call for a…