my best guess would be A wrote the paragraph
The British army
By the British in World War.
The same as every other army - they fought.
'Jerries' was British army slang during the second world war for Germans. In the first world war, British soldiers were known as 'Tommies'.
Not in high numbers, no. Most "defectors" Into Axis ranks were soldiers from British colonized lands.
They were soundly beaten by he German Army.
Propaganda mostly.
Red Coats
About a 160,000.
A. Berkeley Milne has written: 'Mr. Churchill's animadversions' -- subject(s): Breslau (Ship), British Naval operations, German Naval operations, Goeben (Cruiser), Naval operations, British, Naval operations, German, World War, 1914-1918
Dunkirk
Yes, it was invented by a colonel of the British Army.