Answer: assassination
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. ... This assassination led to Austria-Hungary declaring war on Serbia.
Plz give brainlest
<span>The valid next step for the senatorial seat that he left empty when Senator Robert Byrd from West Virginia passed away on June 28, 2010. He was still a serving Senator in West Virginia is letter B, have the governor install an interim senator. He was a proud member of the Democratic Party.</span>
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