Medvedev, who was president of Russia from 2008 to 2012 and is now deputy chairman of its Security Council, made the comments in an article on Russian-Polish relations amid the war in Ukraine, the Reuters news agency reported.
He said in the article on Thursday that Moscow now had a "dangerous enemy" in Poland, which has strongly supported Ukraine, while accusing Russia of disinformation campaigns and espionage, according to Reuters.
Medvedev, a top ally of President Vladimir Putin, warned in his article that Russia would treat Poland "as a historical enemy," Reuters reported.
"If there is no hope for reconciliation with the enemy, Russia should have only one and a very tough attitude regarding its fate," he said, as cited by Reuters.
He added: "History has more than once delivered a merciless verdict to the presumptuous Poles: no matter how ambitious the revanchist plans may be, their collapse could lead to the death of Polish statehood in its entirety."
Medvedev in January warned the West that a defeat for Russia in Ukraine could lead to a nuclear war, according to news reports at the time.
Russia invaded Ukraine on February 24, 2022, launching the largest military campaign in Europe since World War II.
Friday is day 618 of Russia’s war on Ukraine.
(gs)
Source: Reuters