The following month he led two platoons in an attack on a hill near Montecodruzzo.
There were 150 Germans, well dug in, but he captured the position before beating off six counter-attacks. Artillery support could not be provided because, given the nature of the terrain, the risk of casualties to his own men was too great.
By the end of the war, Wilson had also been awarded the United States Distinguished Service Cross, the highest gallantry award that can be given to a non-citizen. He then joined the Colonial Service where he served for 17 years in Northern Nigeria, initially as an assistant district officer
He often spent more than 20 days a month on horseback touring the remote districts in his charge – an area the size of Northern Ireland.
On one occasion he was confronted by an armed mob of some 3,000 people, some of whom had already taken part in the murder of government tax collectors. Wilson’s force of local police was quickly overwhelmed and his groom made off on his horse.
Completely alone, he charged into the crowd, physically attacking the ring leaders.