A third party is a part that doesn’t fit the criteria of belonging to the two dominant parties of the US. In simple terms, it is any party that isn’t the two dominant parties (republican and democratic).
<em>The first world war began in August 1914. It was directly triggered by the assassination of the Austrian archduke, Franz Ferdinand and his wife, on 28th June 1914 by Bosnian revolutionary, Gavrilo Princip. This event was, however, simply the trigger that set off declarations of war.</em>
<em>* Hopefully this helps:) Mark me the brainliest :) !!!!</em>