Try google. Its foolproof.
GermanyItalyJapanSoviet UnionBritainFranceUnited StatesPolandChinaThat is a list of nine countries that were involved with the onset of the Second World War.
name the treaty of peace which was imposed on germany
See website: Korean War (there is a list)
See the website on the: Korean War. It will show a list of countries involved with the war.
The following is the list of countries involved in World War 1: AlbaniaArabiaAustria-HungaryBelgium and coloniesBrazilBulgariaChinaCosta RicaCubaCzechoslovakiaEstoniaFinlandFrance and EmpireGreat Britain and EmpireGermany and EmpireGreeceGuatemalaHaitiHondurasItaly and coloniesJapanLatviaLiberiaLithuaniaLuxembourgMontenegroNicaraguaPanamaPersiaPhilippinesPolandPortugal and coloniesRomaniaRussiaSan MarinoSerbiaSiamTurkeyTranscaucasiaUnites States of America
yes
The Allies and the Entente.
It was occupied by Germany on 15 March 1939.
There were not only two countries.
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.
Because most of the major countries of the world were involved in the fighting.