Just before the World War II had started, England had a short professional force giving up manpower for superior mobility and technology over the enemy, there was also a territorial army which was poorly trained and supplied.
Such doctrine came about from the memory of the first WW and the massive loss of life of British Soldiers.
The British Royal Navy was the largest and the strongest Navy in the world, And as the first line of defense was held up as more important than the army, therefore receiving more of the defense budget
The British Army’s main function in the interwar Years was the Garrison, the British Empire conscription was introduced in early 1939 to Rapidly increase the number of Soldiers in the army as the threat of Nazi Germany became more apparent, requiring men aged 20 and 21 to take six months military training.
National Service Act upon Declaration of war in Germany in September 1939 was passed requiring men between 20 to 23 for military service increasing, to the ages of 18 to 41 as the war progressed
On The Outbreak of World War two British Prime Minister Neville Chamberlain sent the British expeditionary Force, formed in 1938, and under the command of General John Gort to France recently Re-equipped under the threat of the German forces.
The Rapid German advancement during the battle of France in May 1940 Forced the British Expeditionary Force on the retreat to Dunkirk, for evacuation known as the Operation Dynamo.
Beginning on the 26th of May over 330,000 British and French Troops were successfully evacuated from the port, but much of the army’s weapons vehicles and equipment had to be abandoned.
After Dunkirk, the British Army along with its commonwealth allies would go on to fight in the
Mediterranean and Middle East theatres and in the Burma campaign.
The British army eventually started to become victorious over the axis powers mid war, starting with the Tunisian campaign and then the invasions of Sicily and the Italian mainland in 1943.
In 1944, Under General Bernard Montgomery the British Army took part in D-Day alongside the us and Canadian armies as well as other allies. The Army pushed into the Rhine in February 1945 until the German Surrender in Northwest Germany on the 4th of May and In East Asia, the British Army helped to push back the Japanese Forces into Eastern Burma.
In the Second World War, it was estimated that three hundred and eighty-five thousand British soldiers were killed or wounded.