SIR – As we mark the second anniversary of Russia’s brutal invasion of Ukraine, it is worth reminding ourselves of the memorial near Mylor Bridge in Cornwall, where, below a white cross, a plaque reads: “This symbol of faith in God was erected by Ukrainians who, escaping from Russian communists, found refuge in England”. It is dated June 7 1948. This should strengthen the determination of all the democracies of Europe and elsewhere, wishing to retain their own freedom, to be wholly supportive of