Very much so.
In 1939
yes
No
lend lease to Britain of war supplies.............................
I think you meant to ask about WWII, since Japan was on the Allies side (i.e. the side of Britain and Australia ans the USA) in WWI.
Britain did not help America win the Revolutionary War.
American Soldiers came to Britain in World War II to help out.
USA
yes
In Africa after World War 1
No, France gave in to Germany, and Germany then took over France. We did not help them. Not in World War I, the war the question asks about. Britain joined France in its fight againt Germany during the first World War.
Treaty
In Africa after World War 1
No
Britain didn't lose in World war 2. With some timely help from the US, they ended up on the winning side.
He was priminister of Britain during WW2
it joined the Entente (Britain, France and Russia). We contacted them to ask for their help. they didn't reply, but then they turned up and joined. .
lend lease to Britain of war supplies.............................