When Major General Knox was recalled to England at the end of 1919, he passed command of the British Military Mission to Lieutenant Colonel Charles Wickham, who was originally commissioned into the Norfolk Regiment and awarded a DSO during the Boer War.
As head of supply in Siberia, he dispatched millions of pounds worth of British arms, ammunition and equipment to Kolchak’s army on the front line, but in January 1920 he had to organize the evacuation of British personnel and help those captured by the Red Army. He sent dozens of telegrams updating Winston Churchill (they had both been to the same school) about Leonard Vining and the other prisoners and put together a resupply train for their relief. However, once the British captives were transported to Moscow, Wickham closed down his headquarters in Vladivostok and returned via Shanghai to England.
He was immediately posted to Ireland at the height of the struggle for independence to organize the Royal Ulster Constabulary. He remained in charge for 25 years, earning a bipartisan reputation for his integrity and civil manner. One of his greatest challenges was organizing the defence of Northern Ireland during the Second World War, but after it ended, he could not resist one final overseas challenge when he was invited to lead the British police mission in Greece during the communist insurgency, for which he was knighted in 1952.