The Central Powers were Austria-Hungary and...
Germany.
What did the Schlieffen plan say?
Attacking France first and then continuing with Russia.
Why was the First Battle of the Marne important?
Because it made Germany's plans unstable.
What is trench warfare?
When armies fight from opposite trenches.
Why did the Schlieffen plan think that Russia should be attacked second?
Because of their inferior railroad system.
The four new weapons used in WW1 were: Poisonous Gas, Machine Guns and ____ ; ____________.
Submarines and Tanks.
True or False: Russia was Serbia's ally.
True.