The Battle of the Somme was fought from 1 July to 18 November 1916 and became one of the defining campaigns of the First World War. It began as a joint British and French offensive on both sides of the River Somme. The original Allied plan was shaped before the German attack on Verdun, but Verdun changed its purpose: the Somme offensive now also had to relieve pressure on the French army. The first day became the bloodiest day in British military history, with 57,470 British casualties, including 19,240 killed.

Yet the Somme should not be reduced to 1 July. The battle lasted 141 days. It included the fighting for Contalmaison, Mametz Wood, Pozières, Delville Wood, Thiepval, Courcelette, Flers-Courcelette, the Ancre Heights and Beaumont-Hamel. Australian, Canadian, Newfoundland, New Zealand, South African, Indian, French, British and German soldiers all experienced different phases of the campaign. Tactics also changed. By November the armies fighting on the Somme were not operating exactly as they had on the opening morning.

Why the Allies chose the Somme

At the end of 1915 the Allied powers planned coordinated offensives for 1916. Britain and France would attack together on the Western Front while Russia and Italy placed pressure on the Central Powers elsewhere. The meeting point between the British and French armies near the Somme offered a logical sector for a joint operation.

Then Germany attacked Verdun in February 1916. French divisions and artillery were drawn into the battle. The French contribution to the Somme offensive had to shrink, while the British role grew. The Somme therefore became both an offensive in its own right and a way to force Germany to divert men and guns from Verdun.

The British army of 1916

The army preparing to attack on the Somme was very different from the small professional British Expeditionary Force of 1914. It included large numbers of wartime volunteers recruited into Kitchener's New Armies. Many battalions had strong local identities. Friends, neighbours, factory workers, footballers and colleagues had enlisted together.

This gave the first day a particular social impact. When a battalion suffered catastrophic losses, the effects could be concentrated in one town, workplace or community. The idea of the “Pals battalion” has therefore become one of the most powerful parts of Somme memory.

The German defensive system

German forces had occupied much of the higher ground since 1914 and spent nearly two years improving their positions. Trenches were protected by belts of barbed wire. Strongpoints covered valleys and approaches. Deep dugouts cut into chalk could shelter men during bombardment.

This depth is crucial. The British artillery could destroy visible trenches yet leave defenders alive underground. When shelling lifted, German troops could emerge, man machine guns and fire into exposed infantry. The strength of the defence varied across the front, but on sectors such as Beaumont-Hamel and Thiepval it proved devastating.

The week-long bombardment

Before the infantry attack, British and French artillery bombarded German positions for days. Commanders hoped to cut wire, destroy trenches, crush dugouts and neutralize enemy artillery. Enormous quantities of ammunition were fired.

The results were uneven. Some shells failed to explode. Lighter field artillery could damage surface trenches without destroying deep shelters. Wire cutting succeeded in some places and failed in others. German artillery was not completely silenced.

This does not mean artillery preparation was pointless. It means its effects were overestimated in some British sectors and the assumptions built around it were too optimistic.

The mines beneath the German line

British tunnelling companies prepared mines under several German positions. At 7:28 a.m. on 1 July, the Lochnagar mine near La Boisselle exploded. Other mines were fired along the front.

The explosions destroyed local positions and created dramatic craters, but a mine could not solve the wider defensive problem. Infantry still had to cross open ground, pass through wire and fight surviving defenders.

7:30 a.m., 1 July 1916

The main British infantry assault began at 7:30 a.m. Across much of the front, men left their trenches in waves and advanced toward the German line. The exact formation and pace differed between units, so the popular image that every soldier was simply ordered to walk slowly in rigid lines should be treated with care.

What mattered was exposure. In sectors where German machine guns survived and wire remained intact, infantry had little cover. Valleys and slopes channelled movement. German artillery also began striking British approaches and communication trenches.

Why the first day was not equally disastrous everywhere

The northern British sectors around Serre, Beaumont-Hamel and Thiepval produced some of the worst results. Farther south, especially where British forces operated closer to the French and where artillery preparation had been more effective, important objectives were captured.

The French army also made greater progress on 1 July with lower casualties than the British. This variation matters because it shows the battlefield was not one uniform tactical situation.

57,470 casualties

The British Army suffered 57,470 casualties on the first day, including 19,240 men killed. It remains the worst single day in British military history.

A casualty is not automatically a death. The total includes killed, wounded, missing and prisoners. Keeping that distinction clear is important when interpreting First World War statistics.

Beaumont-Hamel and Newfoundland

The Newfoundland Regiment entered the attack at Beaumont-Hamel at 9:15 a.m., after earlier assaults in the sector had already failed. Veterans Affairs Canada records that 801 men went into action. Only 68 answered the roll call of the unwounded the following day. Final Newfoundland figures gave 233 killed or dead of wounds, 386 wounded and 91 missing.

The scale was devastating for a dominion with a small population. July 1 became Memorial Day in Newfoundland and Labrador, a remembrance tradition that exists alongside Canada Day.

The Sunken Lane and the camera

Near Beaumont-Hamel, Geoffrey Malins filmed men of the Lancashire Fusiliers waiting in the Sunken Lane before the assault. The footage became part of the 1916 film The Battle of the Somme.

When released in Britain, the film brought battlefield images to a mass civilian audience. Viewers saw soldiers moving forward, wounded men and the scale of the campaign only weeks after the events. The Sunken Lane is therefore both a battlefield site and a landmark in the history of war photography and cinema.

Thiepval: a fortress village

Thiepval stood on commanding ground above the River Ancre. German defences around the village and nearby Schwaben Redoubt resisted the British attack on 1 July. The village itself was not captured until late September.

The modern Thiepval Memorial dominates the ridge. Its 16 piers carry the names of more than 72,000 missing servicemen of the Somme who have no known grave.

Why the battle continued after 1 July

The Allies had committed enormous resources and still had strategic reasons to continue. German forces at Verdun remained under pressure. The British army also needed to learn how to conduct large-scale offensive warfare. Ending the battle after one day would have surrendered the initiative without solving those problems.

The offensive therefore became a sequence of smaller battles aimed at successive ridges, villages and defensive lines.

Contalmaison and Mametz Wood

During early July British forces fought to secure villages and woods beyond the initial front. Contalmaison changed hands amid repeated attacks. Mametz Wood became strongly associated with the 38th (Welsh) Division.

Woods on the Somme were not peaceful forests. Artillery shattered trees and created tangled obstacles. German machine-gun positions could use the broken ground effectively.

Pozières and the Australians

Australian troops entered the Somme battle in late July. On 23 July the 1st Australian Division attacked Pozières and captured much of the village. The position sat on key high ground along the Albert-Bapaume road.

Over the following weeks the 1st, 2nd and 4th Australian Divisions fought for the ridge and toward Mouquet Farm. The Australian War Memorial gives approximately 23,000 Australian casualties in the Pozières fighting, including about 6,800 dead or dead of wounds.

The artillery bombardment became one of the most intense experiences in Australian military history.

Delville Wood and South Africa

Delville Wood near Longueval became a defining battlefield for the South African Brigade. From mid-July, South African troops fought to hold the wood during repeated German counter-attacks and bombardments.

The modern South African National Memorial and museum preserve that national connection. The wood also demonstrates how difficult it was to hold captured ground under enemy artillery.

The French army on the Somme

French participation is often underrepresented in English-language tourism. French forces attacked south of the British sector and achieved substantial gains on the opening day. They continued fighting throughout the campaign.

France's war effort in 1916 cannot be understood through Verdun alone. The French army was simultaneously fighting on the Somme while maintaining the defence farther east.

September: the first tanks

On 15 September, during the Battle of Flers-Courcelette, the British used tanks in battle for the first time. The machines were mechanically unreliable and available in limited numbers, but their appearance marked an important technological development.

Early tanks were not war-winning weapons. Many broke down or became stuck. Their importance lies in experimentation: armies were searching for ways to cross wire, suppress machine guns and restore mobility to the battlefield.

Canada at Courcelette

Canadian troops entered the Somme campaign in September. The capture of Courcelette became one of the Canadian Corps' important early offensive achievements. Canadian forces later fought bitterly around Regina Trench.

For Canadian visitors, the Somme therefore extends well beyond Beaumont-Hamel. Newfoundland was a separate dominion in 1916, while the Canadian Corps fought later in the campaign.

The creeping barrage and changing tactics

One of the major tactical developments of 1916 was closer coordination between artillery and infantry. Creeping barrages moved forward according to a timetable, creating a curtain of shellfire ahead of attacking troops.

When coordination worked, defenders were forced under cover until infantry approached. When troops fell too far behind, German soldiers had time to re-emerge. When men followed too closely, they risked casualties from their own shells.

This method would be refined in later battles, including Arras and the successful September operations around Ypres in 1917.

Why artillery became the centre of the battle

The popular image of the Somme focuses on infantry crossing no-man's-land. Operationally, artillery consumed the majority of planning and logistics. Guns needed millions of shells. Roads and railways moved ammunition forward. Counter-battery work tried to destroy German guns.

Infantry could capture a trench, but artillery often determined whether it could be reached and held.

The weather changes the campaign

Summer conditions did not last. Autumn rain turned shell-damaged ground into mud. Movement became slower and supply more difficult. Wounded men could take hours to evacuate.

The Somme is sometimes imagined entirely as a muddy battle, just as Passchendaele is. In reality conditions changed over five months. July dust, heat and chalk belonged to the same campaign as November mud and cold.

The Battle of the Ancre

The final major phase began in November. British forces attacked around the River Ancre and finally captured Beaumont-Hamel, which had resisted on 1 July.

This creates one of the strongest comparisons on the battlefield. The ground where Newfoundland troops suffered disaster on the opening morning fell to British forces months later under different tactical conditions.

18 November: the offensive ends

By mid-November worsening weather, exhausted troops and limited immediate prospects brought the campaign to an end. The Allies had advanced several miles but had not achieved the decisive breakthrough imagined before the battle.

Germany had nevertheless been forced into an exhausting defensive struggle while also fighting at Verdun and responding to Russian attacks elsewhere.

Was the Somme a failure?

There is no useful one-word answer. The offensive failed to produce the breakthrough many planners hoped for. The human cost was enormous. British command errors and unrealistic assumptions on 1 July deserve serious criticism.

At the same time, the battle relieved pressure on Verdun, inflicted major losses on the German army and forced the rapidly expanding British army to develop tactics, artillery methods and command experience it would use later.

Calling the campaign either a glorious victory or completely pointless prevents serious historical analysis.

The German experience

German soldiers endured months of artillery bombardment, repeated attacks and heavy casualties. Defenders sometimes occupied strong deep shelters, but they also lived under extreme strain and suffered heavily when British and French artillery isolated positions.

German accounts frequently emphasize the intensity of Allied material superiority. The Somme became a warning that Germany faced enemies capable of sustaining industrial warfare on an enormous scale.

How many men became casualties?

Total campaign figures vary because historians calculate categories and date ranges differently. More than one million men from the opposing armies were killed, wounded, captured or missing during the wider battle.

For a visitor, individual site figures are often more meaningful than one enormous total. Beaumont-Hamel, Pozières, Thiepval and Delville Wood each show how the campaign affected particular communities and nations.

The Somme and national memory

For Britain, 1 July became a symbol of the volunteer army's sacrifice. For Newfoundland, Beaumont-Hamel became a national day of mourning. For Australia, Pozières became one of the most costly battlefields in its history. South Africa remembers Delville Wood. Canada remembers Courcelette and Regina Trench.

The Somme is therefore not one national story. It is a shared battlefield with different memory traditions layered across it.

The Somme battlefield today

Much of the battlefield returned to agriculture. Villages were rebuilt and trenches ploughed away. The rolling Picardy landscape can look almost untouched.

Yet key features remain: Beaumont-Hamel preserves trench lines, Lochnagar preserves a mine crater, Thiepval occupies commanding high ground and Pozières still sits on the ridge that made it tactically valuable.

How to read the terrain

Start with ridges and valleys. Thiepval overlooks the Ancre. Pozières controls high ground along the road toward Bapaume. Beaumont-Hamel lies below German positions. Sausage Valley and Mash Valley channelled British approaches around La Boisselle.

Once these shapes are understood, casualty patterns make more sense. Men were not falling on an abstract map. They were exposed to specific fields of fire created by ground.

How much can you see in one day?

A coherent first day should focus on a small number of sites. Beaumont-Hamel, Thiepval, Lochnagar and Pozières already cover the opening day, Newfoundland, the missing, mining and Australia. Adding too many distant sites can turn the visit into a road trip.

If travelling from Bruges or Ypres, driving time is substantial. A full day is necessary. Two days are better if you want Delville Wood, Courcelette, Villers-Bretonneux, Le Hamel or family-history research.

Frequently asked questions

When was the Battle of the Somme?
The main 1916 campaign began on 1 July and ended on 18 November 1916.

How many British casualties were there on 1 July 1916?
The British Army suffered 57,470 casualties on the opening day, including 19,240 killed.

Was the Somme only a British battle?
No. French forces were major participants, while troops from across the British Empire and Commonwealth fought during different phases. German forces defended the sector throughout the campaign.

Why was the Somme offensive launched?
It formed part of a wider Allied strategy and, after Germany attacked Verdun, became increasingly important for relieving pressure on the French army.

What are the most important Somme sites to visit?
For a first visit, Beaumont-Hamel, Thiepval, Lochnagar Crater and Pozières provide a strong introduction. Delville Wood, Courcelette and Albert add important national and operational stories.

How long do I need for the Somme battlefield?
A full day is the minimum for a coherent overview. Two days are better if you want to include Australian, Canadian, South African or family-history sites in depth.