Britain wasn't invaded during World War 2
Great Britain, or more correctly The United Kingdom of Great Britain and Northern Ireland, was involved in both World War 1 and World War 2.
Britain had a coalition government during World War 2
In both.
Apparently they didn't, because World War 2 DID happen.
American Soldiers came to Britain in World War II to help out.
The whole war
Britain won the war !
germany,italy and japan
Britain
Britain told Germany to remove their troops from Poland. Germany refused and Britain declared war on them
The Allies won world war 2 which consisted of U.S.,Britain,and Russia