A poll conducted by ICM Research for Sputnik earlier in the week in April 2015 showed that 13 percent of Europeans think the Soviet Army played the key role in liberating Europe from Nazi-Fascism during the World War II.
Up to 24 percent of European Union citizens polled could not say who played the major role in changing the course of the war.
"People have to learn history, but only honest and true history, not a distorted one," Kislyak said.
Kislyak explained that the World War II history has been misrepresented recently, especially in some of Russia's neighbor countries.
"While the Soviet army did the most, the Soviet Union lost most lives for the common victory, the country, which suffered the biggest destruction during the war, now is suddenly represented as Europe's adversary," he said.
The ambassador lamented that despite the end of the Cold War, a world based upon mutual respect has not yet been built, and some countries have not overcome old stereotypes.
The Soviet Union lost about 27 million people in the World War II, including military and civilian casualties. The number of military dead was estimated at above 8.7 million, more than half of all allied casualties.
On May 9, celebrations will take place in Moscow to commemorate the 70th anniversary of Nazi Germany's defeat. The leaders of six states have accepted Moscow's invitation to attend the military parade at Red Square.
