Across
- 3. was happened and ended on 1914 to 1919
- 6. started the war when assassinated
- 9. the US officially declared war on Germany
- 10. made by French in 1913
Down
- 1. the area between the trench lines
- 2. fought in September 1914
- 4. Germany and Austria-Hungary
- 5. created byAlfred Graf von Schlieffen
- 7. France, the United Kingdom, Russia
- 8. officially declared war on Serbia