Whatever happens, we must learn from this and not allow ourselves to be so naive in future. We need to change our whole attitude to other countries and their ideology. Forget globalisation, it simply hasn't worked. We need to strengthen our armies and always keep ourselves prepared for warfare.
At least we had weapons ready to give Ukraine, we were not totally complacent.
...and yet today....
A British volunteer fighter in Ukraine has been captured by Russian troops in the besieged southeastern port city of Mariupol, according to a statement issued on his behalf.
Aiden Aslin, 28, who goes by the name "Johnny", said his unit had tried its best to defend Mariupol but "had no choice but to surrender to Russian forces".
"We have no food and no ammunition.
He said he had started a new life in Ukraine with his fiancee before the invasion - prompting him to stay and fight Vladimir Putin's troops.
He previously volunteered to fight the Islamic State in Syria before moving to Ukraine in 2018, where he served in the country's marines.
Mariupol has been under intense attack by Russian forces for several weeks, with the UK now "working urgently" to confirm reports of a possible chemical attack in the city.
Foreign secretary Liz Truss said any confirmed use of such weapons in Mariupol would be a "callous escalation" of the war.
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Mr Aslin's capture appeared to be supported by other sources who have spoken with him.
One of his friends told Atlas News: "I just spoke with [Aslin]. His unit is out of ammo and food. They have no other option but to surrender. He said he loves you all. He is strong in spirit and showed no weakness at all.
"He is surrendering to Russians which is only slightly better than surrendering to the Chechens. Their commander will be meeting them soon. Please Lord have mercy."