Putin mobilises forces for nuke drill; Biden warns against ‘serious mistake’

As the war enters its 9th month, the fear of "dirty bomb" attacks has never been greater. Russia has notified the U.S. about its plans to carry out annual drills of its nuclear forces. The United States has said it expects Russia to carry out test launches of missiles during its annual 'GROM' exercises of its strategic nuclear forces. U.S. officials told news agency Reuters that under the New Start Treaty, Russia is obliged to provide advance notification of any such missile launches. This is a routine drill, but poses a potential challenge for the West at the moment. Watch this report for more.