Across
- 3. - This vehicle was used underwater in the First World War.
- 4. - The battlefield of a belligerent country, the area behind the front, inhabited by civilians.
- 10. - This is another name for blitzkrieg.
- 12. - The perpetrator of the assassination in Sarajevo, which started the First World War.
- 13. - The target of the 28 June 1914 assassination in Sarajevo and the heir to the throne of the Austro-Hungarian Monarchy.
- 14. - Poisonous chemicals used in World War I, such as chlorine gas and phosgene, used in attacks on the enemy.
- 15. - He was the last ruler of the Austro-Hungarian Monarchy.
Down
- 1. - 1919 The Treaty of Versailles was signed in the French ........... castle.
- 2. - This attack that took place in 1916 at the Somme River. This lasted for many months and with many losses.
- 5. - He was a German general who planned the Schlieffen Plan at the beginning of the First World War.
- 6. - A term for a rapidly advancing action.
- 7. - Those facing the front lines retreat into the trenches, the front line does not move in any direction despite the continuous fighting.
- 8. - The peace treaty ending the First World War, concluded in 1918 between the Entente Powers and the Central Powers.
- 9. - This part is also called the demilitarized zone.
- 11. - After the heir to the throne of the Austro-Hungarian Monarchy was killed in the Sarajevo assassination on June 28, 1914, ............. declared war on Serbia.