The Russian Prime Minister has joined his Polish counterpart for the first time at a ceremony marking the 70th anniversary of the Katyn massacre.
Thousands of Polish soldiers were slaughtered by Soviet forces – a fact only acknowledged in the 1990s.
Up until then the Soviet’s blamed the Nazis, but ties between Moscow and Warsaw have been severely strained ever since.
So the appearance of both Vladimir Putin and Donald Tusk together may herald a new era in relations and start healing the scars caused by Katyn.
Katyn: a historic presence for a historic occasion