Azerbaijan,[a] officially the Republic of Azerbaijan,[b] is a transcontinental and landlocked country at the boundary of Eastern Europe and West Asia....

Austria is a semi-presidential[d] representative democracy with a popularly elected president as head of state and a chancellor as head of government ...

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 ...