Austria-Hungary declared war first in World War I. On July 28, 1914, following the assassination of Archduke Franz Ferdinand, Austria-Hungary issued an ultimatum to Serbia, which was only partially accepted. When Serbia did not fully comply, Austria-Hungary declared war, marking the official start of the conflict. This action set off a chain reaction of alliances and declarations of war among the major powers in Europe.
Austria-Hungary declared war on Serbia at the start of World War I.
Austria-Hungary, with the death of Archduke Ferdinand, declared war on Serbia, which caused a chain reaction of war induced countries. Austria Hungary to Serbia, then Russia to Germany, United Kingdom and so on.
Austria Hungary declared war on Serbia.
First was the war of 1812, last was WW2.
The civil war was an un-declared war fought against ourselves. WW1 was a declared war fought against a foreign nation.
World War I was directly started by the assassination of Austria's Archduke Franz-Ferdinand by a Serbian terrorist group. Austria-Hungary declared war on Serbia first.
Austria-Hungary declared war on Serbia and it pretty much snowballed from there.
WW1 started in 1915 on the 25th of April. If your talking about when or who declared war first, I think it was Germany but I don't know when.
Austria-Hungary declared war on Serbia at the start of World War I.
The US remained neutral. It declared war in 1917, three years into the war.
Austria-Hungary, with the death of Archduke Ferdinand, declared war on Serbia, which caused a chain reaction of war induced countries. Austria Hungary to Serbia, then Russia to Germany, United Kingdom and so on.
battle of somme , Romanioa declared war on centeral powers
the USA declared war on Germany,making the US a part of ww1
Austria Hungary declared war on Serbia.
First was the war of 1812, last was WW2.
Russia was the first Allied Nation to mobilize troops against Austria-Hungary for its declaration of war on Serbia.
The civil war was an un-declared war fought against ourselves. WW1 was a declared war fought against a foreign nation.