In an interview segment partly discussing the large number of recent deaths of Russian conscripts resulting from the major Ukrainian strike on a training barracks in Makiivka, Professor Michael Clarke (formerly an expert from the Royal United services Institute), claims that many conscripts are from distant parts of Russia (ie not the large cosmopolitan cities like Moscow or St Petersburg). He also claims that many of those conscripts have been told they are there to fight Poland. He claims they have been told that Poland has invaded Ukraine and is planning to invade Russia.
The video where the claim is made is on Youtube here (and the claims are around 5:30 in the video):
... and they've been called into their various units, most of them come from eastern Russia, they don't come from Moscow or St. Petersburg very much, most of them are troops from other regions, and most of them think that they're going to Ukraine to fight the Poles. They're being told that Poland has invaded Ukraine and is preparing to invade Russia. And so most of them, when they're questioned, think that they're fighting Polish troops...
The original broadcast was on Times Radio in the UK.
The video summary on Youtube says:
"Many captured troops mobilised by Putin have been misled to believe they are defending Russia from Polish troops, Professor Michael Clarke tells #TimesRadio."
Are there independent verifiable sources that confirm this?