Part of the Hundred Days Offensive: The Allied victory at the Battle of the Sambre is the final operation of the Hundred Days Offensive.

Part of the Hundred Days Offensive: The Allies are victorious at the Battle of the Selle.

Part of the Hundred Days Offensive: The Allies are victorious at the Battle of Courtrai.

Part of the Hundred Days Offensive: Australian and British troops secure victory at the Battle of the St Quentin Canal.

Part of the Hundred Days Offensive: British, Canadian and New Zealand troops enjoy success at the Battle of the Canal du Nord.

Part of the Hundred Days Offensive: The Allies launch the Meuse-Argonne Offensive, the final phase of the Hundred Days Offensive.

Part of the Hundred Days Offensive: The Allies secure victory at the Battle of Épehy.

Part of the Hundred Days Offensive: British and New Zealand troops secure victory at the Battle of Havrincourt.

Part of the Hundred Days Offensive: Australian troops secure victory at the Battle of Mont Saint Quentin.

Part of the Hundred Days Offensive: Canadian forces enjoy success in the Battle of the Scarpe.

Part of the Hundred Days Offensive: British Empire and American troops are victorious during the Second Battle of the Somme.

Part of the Hundred Days Offensive: The Germans are defeated at the Battle of Amiens, the first stage of the Hundred Days Offensive.

The Allies launch a decisive counter-attack on the Western Front.

The final phase of the Spring Offensive (also known as the Second Battle of the Marne) fails when the Germans are counter-attacked by the French.

During the fourth phase of the Spring Offensive (also known as Operation Gneiseau), the German attack is defeated by the Allies.

Part of the Spring Offensive: The Allies halt another German attack at the Battle of Belleau Wood.

The first major American attack of war takes place at the Battle of Cantigny.

During the third phase of the Spring Offensive (also known as Operation Blücher-Yorck or the Third Battle of the Aisne), the German advance is halted after early gains.

Part of the Spring Offensive: The British and French resist another German attack at the Second Battle of Kemmel.

Part of the Spring Offensive: German attacks are repulsed by the Allies at the Battle of Bethune.

Part of the Spring Offensive: German attacks are repulsed by the Allies at the First Battle of Kemmel.

Part of the Spring Offensive: Despite stiffening resistance, the Germans make further gains following the Battle of Bailleul.

Part of the Spring Offensive: The Germans enjoy success against British and Portuguese forces at the Battle of Estaires.

The second phase of the Spring Offensive (also known as Operation Georgette or the Battle of the Lys) sees German advances in Belgium.

Part of the Spring Offensive: A final German thrust towards Amiens is checked during the Battle of the Ancre.

Part of the Spring Offensive: Despite nearly reaching Amiens, the Germans are held at the Battle of the Avre.

Part of the Spring Offensive: The First Battle of Arras sees German attacks slowed down by the Allies.

Part of the Spring Offensive: The Germans enjoy further gains following the Battle of Rosières.

Part of the Spring Offensive: German forces enjoy further success at the First Battle of Bapaume.

The Germans bombard Paris with long-range guns.

Part of the Spring Offensive: German forces enjoy success at the Battle of Saint Quentin.

During the first phase of the Spring Offensive (also known as Operation Michael) on the Western Front, the Germans make sweeping early gains towards Amiens.