"You have to live on as mothers of children whose fathers heroically gave up their lives. Dear relatives, I ask you to remember that a person is alive so long as they are remembered. So let's remember these guys," he said.
The very first Russian soldier officially confirmed by Moscow to have been killed was Nurmagomed Gadzhimagomedov, a young Dagestani who state media said died while saving fellow troops. He was posthumously decorated by Putin with the Hero of Russia award on March 4.
His death prompted Putin to publicly pay tribute to the role played by non-Russian ethnic groups in Moscow's assault, saying he was "proud of being part of this world, this powerful, strong and multinational people of Russia."
'HIDDEN RESISTANCE'
The Soviet invasion of Afghanistan sparked a national trauma -- chronicled in Nobel prize-winning author Svetlana Alexievich's harrowing oral history "Boys in Zinc," named after the lining of the coffins in which the young soldiers came back -- and contributed to the collapse of the USSR.
The draconian censorship measures imposed by Moscow in the Ukraine conflict -- which mean that what the Kremlin terms a "special military operation" cannot even be called a war in Russia -- have kept dissent to a minimum, with few daring to express alarm over the losses.
A rare voice has been that of Natalia Poklonskaya, a former prosecutor in the Ukrainian peninsula of Crimea who became a Russian MP and Russian official after the annexation.
Taking issue with the use of the letter 'Z' by the Russian authorities as a propaganda image, she said it "symbolised a tragedy for both Russia and Ukraine. Why? Because Russian soldiers are being killed."
Luzin said the lack of open signs of protest in provincial Russia and ethnic minority regions over the losses did not mean that there would be no reaction in the future.
"But their reaction will not be an open resistance but a hidden one -- they will start to avoid conscription and contract military service," he said.