In May 1918, General Foch turned to Pershing in order to quickly avail of military support from the United States, which had joined the war in April 1917. Two divisions were deployed in the Château-Thierry region in order to contain the enemy advance. For most of these men, it was a baptism of fire. On 4 June, at the cost of significant losses, the movement was halted and, on 6 June, the 2nd American division (DIUS) took over, in the Bois Belleau in particular.

At Château-Thierry, an imposing memorial, Rock of the Marne, was inaugurated in 1933, in memory of the offensive of 18 July 1918 during the second battle of the Marne. Built by the architect Paul Philippe Cret, assisted by Achille-Henri Chauquet, it is a reminder of the commitment of the Americans alongside the French during the second battle of the Marne, notably on Hill 204.

Only two soldiers from the Second World War are buried here: Charles de Rouge, officer cadet with the 1st tank battalion, who died on 10 June 1940 (grave n° 1378) and lieutenant Pierre Charles Pain (grave 585).

In the hills above the town, a memorial to the sacrifice of the French and allied troops who fought in the two battles of the Marne was erected between 1921 and 1931 thanks to the backing of Madame de la Rochefoucauld, the Cardinal of Reims, the Bishop of Châlons, the military authorities and many donors. With the Douaumont ossuary, the basilica of Notre-Dame de Lorette and the Hartmannswillerkopf memorial, this was one of four national monuments erected by subscription after the Great War. The Gothic construction is based around two commemorative chapels illustrated by patriotic stained-glass windows. Outside is a “lantern of the dead” recalling the sacrifice and losses of many families. An ossuary contains the remains of nearly 1,500 soldiers, mostly unidentified. In 2014, the Ministry of Defence decided to provide the Dormans municipal council, owner of the site, with support for the restoration of the entire memorial.

Today the Great Tomb contains the bodies of 127 French soldiers, 32 of them unknown, in a single grave.

In 1932 the Souvenir Français association erected the monument made from stone, marble and mosaic preserving the memory of the 95 identified soldiers from the 231st, 246th and 276th infantry regiments.

They include author and poet Charles Péguy, who was killed on 5 September 1914.

Just 400 metres from the Great Tomb, a granite monument shows the place where Lieutenant Péguy went into attack and was killed 150 metres further on, in the field opposite the stele.

The Battle of the Ourcq, 5-9 September 1914

On 25 August 1914, General Joffre ordered a retreat in order to place 500 000 men in a line of resistance spanning nearly 200 miles, from Verdun to the English Channel. His objective was to cut off the Germans’ access to Paris and push them northwards. For that purpose he created the 6th Army, to defend a line from Meaux to Senlis, as there was news of enemy patrols just eight miles from Paris. In conjunction with the British, the French troops made an about-turn. The Ourcq valley then became the scene of bitter fighting, its few hills constituting crucial strategic positions.

On 25 August 1914, General Joffre ordered a retreat in order to place 500 000 men in a line of resistance spanning nearly 200 miles, from Verdun to the English Channel. His objective was to cut off the Germans’ access to Paris and push them northwards. For that purpose he created the 6th Army, to defend a line from Meaux to Senlis, as there was news of enemy patrols just eight miles from Paris. In conjunction with the British, the French troops made an about-turn. The Ourcq valley then became the scene of bitter fighting, its few hills constituting crucial strategic positions.

On 8 September, the French took a battering from the German Army. A fleet of Parisian taxis requisitioned by the French command (the “Taxis of the Marne”) enabled the front line to be maintained, in extremis, by transferring five battalions (5 to 6 000 men) there. On the 9th, the Germans, contained in Champagne, gave way on the Ourcq and, fearing being cut off from their rearguard, retreated over the Aisne, to previously fortified positions. Chambry was one of the enemy’s most advanced positions in September 1914.

From 5 to 12 September, the Battle of the Marne, and more specifically the Battle of the Ourcq, turned around what was a severely compromised military situation and halted Germany’s planned invasion of France. Paris was saved, at a cost of terrible losses: 250 000 young Frenchmen died in August and September 1914. Exhausted, the British and French armies could not find the strength to drive back the invader across its borders.

In a final thrust, each of the belligerents made a frantic dash for the sea, in order to take their enemy from behind. But it failed, and both sides were stranded on the North Sea coast. So began a conflict in the trenches that was to last four years, until the Allied victory in November 1918.

At the entrance to the cemetery, local builders aided by the local council of Etrépilly erected a monument, which was unveiled on 12 September 1915 at the spot where the most intense fighting had taken place. It bears a quotation from Victor Hugo, "Glory to our eternal France, Glory to those who died for her", and commemorates soldiers from the units engaged in these battles, particularly those from the 2nd Zouave infantry regiment.

The area was further developed between December 1914 and May 1915 and reinforced with trenches, dugouts and shelters. In Spring 1915, the gunner Roland Dorgelès, author of the novel Croix de Bois, was stationed there, as was Lieutenant Charles de Gaulle.

In March 2016, the Germans took control of the wood. On 10 March, along the River Aisne, the enemy opened artillery fire on the French positions on the Chemin des Dames ridge from the hamlet of Troyon around 10 kilometres west of Craonne through to Berry-au-Bac. On 17 March 1916, during one of these battles, the poet Guillaume Apollinaire received a shrapnel wound to the head  and was evacuated and trepanned. Weakened by his injury and the operation, he died of Spanish flu in November 1918.

The soldiers buried at the cemetery include the body of Jules-Gérard Jordens, who died two days before his 31st birthday. Born in Nice in1885, this French poet was called up to the 246th Infantry Regiment (IR) as a stretcher bearer. He was moved to the Aisne and then to Artois and was killed at Bois-de-Buttes in 1916. The name of this man of letters figures in the Pantheon in Paris, along with those of the 560 writers who were officially awarded the ‘Died for France’ distinction. Moreover, Robert André Michel, a well-known archivist and palaeographer, died on 13 October 1914 at Crouy.

A dedicated square plot contains the graves of 67 British soldiers killed in October 1914 and from May to October 1918. These remains were exhumed from neighbouring French military cemeteries. At the end of the Marne counter-offensive, the British Expeditionary Force engaged between the French 5th Army and the French 6th Army, where it was deployed in the direction of Laon between Soissons and Craonne. However, due to enemy resistance and troop fatigue, the German forces could not be dislodged. At the end of these exhausting battles, the British, at the request of their command, moved to Flanders. In Spring 1918, a few contingents returned to this region.

At the end of the war, the village of Pontavert was in ruins. Commended in the Army Order on 17 October 1920, Pontvaert was aided by the Cantal region to rebuild its village.

In Spring 1940, war once again wreaked havoc on Pontavert.

Pursuing the defeated enemy on the Marne, the French and the English crossed the Aisne region on 13 September 1914. However, the Germans got a hold of the Chemin des Dames plateau very quickly. After heavy fighting, the enemy managed to remain the sole master of the plateau in November 1914. This progressively turned into a fortress that was only definitively liberated in October 1918 by French and Italian troops.

The Craonnelle National Cemetery was built during the war near an aid station. It includes the bodies of soldiers who died in battle for France along the Chemin des Dames from 1914 to 1918. After the war, the cemetery was developed to accommodate other soliders buried on the Plateau de Californie and the Plateau des Casemates, or those buried in temporary cemeteries at the aid stations of Flandres à Oulches, Vassogne, Jumigny, Craonne, Moulin Vauclair. This cemetery is home to nearly 4,000 French bodies nearly half of which are in two ossuaries. In addition, 24 British soldiers and two Belgian soldiers are also buried there.