Although Britain had not suffered as bad as France during the 1920's of ruin they still had been affected post war. It was in 1929 when Britain felt the shock waves of the great depression from across the Atlantic.
This led to overnight the collapse of the British economy and unemployment soared. Oswald Mosley supplied with funds by the French government suddenly took center stage demanding the removal of capitalism.
Britain spiraled into a downturn as exports fell and unemployment rose. Oswald Mosley formed the parties Volunteer Brigade which was more or less the parties private army.
It was comprised of war vets, industrial workers and ruined businessman. It over the next two years would rise to 20,000 men and would be supplied primarily by extortion and monetary support from the French government.
Assembly at Coventry
In 1931 as tensions reached climax points Oswald Mosely used the crisis within the Labour Party as an excuse to call for a change. He ordered the Volunteer Brigade to assemble at Coventry. While they assembled at Coventry the government not trusting the army ordered the police to sort the situation out. 5,000 police attacked the UBNP in Coventry on the 24 June but were repelled by gun fire as they advanced into the town.
The next day the Volunteer Brigade marched out of Coventry and crossed the River Sowe attacking the lightly armed police on the south side of the river.
Battle of Luton
The Volunteer Brigade started marching to London intending to take it and set up a new government. The government ordered the army to hold the attackers back but the army refused and locked themselves in barracks and so the lightly armed police were told to hold the UBNP advance.
10,000 police officers turned out and set up a defensive line at Luton and attempted to hold it. On the 29th July the Volunteer Brigade and the police came head to head with the police outnumbered two to one and outgunned. After a four-hour skirmish the police lines broke as many of them sympathized with UBNP and some police officers went over and joined them.
St Albans deal
King George V upon hearing the surrender of the police at Luton left his palace and met Oswald Mosely under the flag of truce in the cathedral. He agreed to abdicate and declare Mosely regent. After this Mosely continued his march into London finding the former Westminster government having evacuated where he then started his reforms.