axis powers
The name given to the countries fighting against Germany was Allies. This name was given to this group in both World Wars.
An adventurer or world traveller
Axis Forces
spolia opima
Because in both world wars, the world was literally at war, meaning that many major countries of the world are at war.
An Egyptian head
World War I was also called 'The Great War'. It was given that name because it involved all of the world's great powers or most influential and important countries.
In most countries, you can be given any name, so the limit to the longest possible name is only the space on your birth certificate. The longest name as of yet given to an individual, as far as we know, is Hubert Blaine Wolfe­schlegel­stein­hausen­berger­dorff Sr., given to a German Typester born in the first world war.
The Eurozone
allies
"Countries."