Trump is set to be sworn in for a historic second term as US president Monday, having promised to reach out to both sides and bring a swift end to the nearly three-year conflict.

"We are also open to dialogue with the new US administration on the Ukrainian conflict," Putin said in televised remarks, congratulating the Republican on his upcoming inauguration.

"As for the settlement of the situation itself, I want to emphasise that its goal should not be a brief truce... but a lasting peace based on respect for the legitimate interests of all people," he added.

"We will, of course, fight for the interests of Russia, for the interests of the Russian people."

Trump said last year that the Ukraine-Russia conflict was "dying to be settled" and that he would speak to both Moscow and Kyiv to avoid "World War III".

Putin said he "welcomed" Trump's desire to prevent a third world war.

"We certainly welcome this attitude and congratulate the president-elect of the United States on taking office," he said.