After the assassination of Archduke Franz Ferdinand in 1914, Emperor Franz Joseph declared war on Serbia, which ultimately escalated into World War I....

Austria,[e] formally the Republic of Austria,[f] is a landlocked country in Central Europe, lying in the Eastern Alps.[13] It is a federation of nine ...

Australia, officially the Commonwealth of Australia,[17] is a country comprising the mainland of the Australian continent, the island of Tasmania and ...

Between the 16th and 19th centuries, the traditional Armenian homeland composed of Eastern Armenia and Western Armenia came under the rule of the Otto...

Armenia,[c] officially the Republic of Armenia,[d] is a landlocked country in the Armenian Highlands of West Asia.[10][11] It is a part of the Caucasu...