Britain didn't "choose" the Allied side. Britain played a key role in creating the Allied side. Britain and France had pledged themselves by treaty to assist Poland if it was attacked. On 1 September 1939 Germany invaded Poland, and two days later Britain and France went to war against Germany. This had the effect of turning what might otherwise have been a local war into a much wider conflict.
Serbia was on the Allied side, Britain France, Russia and their allies.
Britain fought alongside the Allied Powers.
The Allied Powers.
Oh dear. Agreed. Great Britain was on the Allied side in both world wars from start to finish. In each war, America came in later, on the Allied side. Just to make sure - Germany was on the other side in both World Wars.
Great Britain and France
There was three, The USA, Britain, and the Soviet Union
on the allied side
Which World War? Japan was on the side of the Triple Entente in WWI and was allied with Britain, France, Russia, etcetera. In WWII, however, they changed sides, allied with Germany and attacked the Allied powers.
Yes, Britain was one of the three Allied Powers at the outbreak of World War 2. Later the US would join as well.
Winston was on the allied side he was the prime minister of great Britain
The primary Allied powers - Britain, France and Russia - were, by 1915, keen to bring neutral Italy into World War One on their side.
The US, Great Britain,France,Soviet Union, and Canada.North Korea