He made these comments during a visit to Vietnam, where he is now the deputy head of the Russian Security Council.
Medvedev believes that the conflict will continue as long as there is a pro-Russian government in Kyiv.
His remarks come as Ukrainian President Volodymyr Zelenskyy has expressed hope of ending the conflict this year, but Russian President Vladimir Putin has said it will be a long process.
The war in Ukraine is considered one of the "frozen" conflicts, like the one between North and South Korea.
Medvedev's comments are seen as part of an attempt to remain politically relevant while criticizing Putin's decisions.
LONDON DAILY ARCHIVE
Former Russian President Medvedev Says War in Ukraine Likely to Last Decades
The former Russian President, Dmitry Medvedev, has stated that the ongoing war in Ukraine is likely to last for decades.
27 May 2023 · 05:11 UTC
