Putin ordered thousands of Russian troops into Ukraine in February 2022, triggering Europe's biggest ground conflict since World War II and the largest confrontation between Moscow and the West since the depths of the Cold War.
Hundreds of thousands of soldiers have been killed or injured and US President Donald Trump has repeatedly said he wants to end the "bloodbath" that his administration casts as a proxy war between the United States and Russia.
In a film by state television about Putin's quarter of a century as Russia's paramount leader entitled "Russia, Kremlin, Putin, 25 years", Putin was asked by a reporter about the risk of nuclear escalation from the Ukraine war.
"They wanted to provoke us so that we made mistakes," Putin said, speaking beside a portrait of Tsar Alexander III, a 19th-century conservative who suppressed dissent.
"There has been no need to use those weapons ... and I hope they will not be required.
"We have enough strength and means to bring what was started in 2022 to a logical conclusion with the outcome Russia requires."
Trump has warned the conflict could develop into World War III. Former CIA director William Burns said in 2022 there was a real risk Russia could use nuclear weapons against Ukraine, an assertion dismissed by Moscow.
In the carefully choreographed state television film, which gave viewers a rare look behind the notoriously closed life of the Russian president, Putin was shown offering chocolates and a fermented Russian milk drink to Pavel Zarubin, a top Kremlin correspondent, in his private Kremlin kitchen.
"I don't feel like some kind of politician," Putin said of his 25 years in power as president and prime minister.
"I continue to breathe the very same air as millions of Russian citizens. It is very important. God willing that it continues as long as possible. And that it doesn't disappear."
Meanwhile, a Russian overnight drone attack on Ukraine's capital injured at least 11 people, including two children.
Ukrainian President Volodymyr Zelenskiy called on Sunday for a real ceasefire lasting at least a month in the more than three-year-old war.
Putin last week declared a three-day ceasefire for May 8-10 to mark the 80th anniversary of the victory of the Soviet Union and its allies in World War II, a move that appeared to be aimed at signalling that Russia is still interested in peace.
Zelenskiy reiterated his calls for a longer halt in the fighting that began when Moscow launched a full-scale invasion of Ukraine.
"The Russians are calling for a ceasefire ... while striking Ukraine every single day. This is top-level cynicism: just this week alone, Russia has used over 1,180 attack drones, 1,360 guided aerial bombs, and 10 missiles of various types against Ukraine," Zelenskiy said on the X social media platform.
The Ukrainian military said its air defence units shot down 69 of 165 drones launched by Russia overnight.
In addition to Kyiv, drones attacked Cherkasy in central Ukraine, where according to national television 15 of the 22 drones targeting the city were shot down.
Emergency services said one person had been injured, with damage to residential buildings and civilian infrastructure.
