The Eastern  question and Balkan crisis are considered to be the causes of

Treaty of St.Germaine was concluded with

Archduke Francis Ferdinand was shot dead on

Baghdad Railway line was constructed to connect ____________ with Baghdad.

Treaty of Versailles was signed in

The First World War broke out with declaration of war between ___________ and __________.

In the First World War Britain and her allies came to be known as ____________.

Construction of __________ became one of the causes of First World War.

__________ joined the Allied Powers when her ships were sank repeatedly by Germany.

Who was the President of America at the time of First World War?