the triple alliance consists of Germany, Austria-Hungary and Italy. This was one side of WW1.
Split France and Great Britain because of the Anglo-Japanese alliance and Franco-Russian alliance
France, Great Britain, and Russia form this for WW1. The US enters later and Italy will also join before the war is over
Austrian Archduke Ferdinand is assassinated which was one of the tipping points that led to WW1.
they planned to invade neutral Belgium in order to sneak into France.
Russian revolution establishes a provisional government.