Question

what is the main cause for world war began​

Answer 1

Answer:

word war began due to invasion of Poland by Germany.

hope it was helpful

Answer 2

Answer:The assassination of Austrian Archduke Franz Ferdinand (June 28, 1914) was the main catalyst for the start of the Great War (World War I).

Includes event: Assassination of Archduke Fra...

Military personnel involved: James Gresham, ...

Explanation The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. ... When Russia began to mobilize due to its alliance with Serbia, Germany declared war on Russia.: