| Hint | Answer |
| British luxury liner that was sunk by German submarines | |
| A Serbian terrorist group | |
| The person who killed Archduke Franz Ferdinand | |
| Place where Archduke was assassinated | |
| A demand by one government that another government accept its terms or face war | |
| Military training camp was set up here at the start of the war | |
| The Minister of the Militia at the start of the war | |
| First battle | |
| Second battle | |
| Third battle | |
| Fourth battle | |
| The main British fighting plane | |
| Canada's most famous air ace | |
| Germany's most famous air ace | |
| Day the Armistice was signed | |