Check that this is your course

This guide is for Pearson Edexcel A-level History, Paper 3, option 37.1: The changing nature of warfare, 1859-1991: perception and reality. Check the code with your teacher. The similarly titled OCR warfare course has different dates, content and assessment.

You study two breadth themes about war and the American public mind, plus five depth studies about technology and military leadership. Keep these halves connected: public understanding of war changed partly because communications changed, while battlefield outcomes depended on whether leaders could use or counter new technology.

The whole course in one argument

Technology expanded the speed, range and destructive power of warfare, but it never acted alone. Railways were useful only with effective mobilisation and supply; firepower shaped outcomes through doctrine and terrain; tanks and radios mattered when integrated into mobile operations; submarines prompted convoy, detection and intelligence countermeasures; air power produced very different results in 1943, Vietnam and 1991.

Americans also encountered war through changing media. Telegraph reports and photographs shortened distance, film and radio created mass audiences, television brought Vietnam into homes, and satellite communication enabled rapid Gulf War coverage. Governments tried to shape this experience through speeches, propaganda, censorship, briefings and controlled access. Their success varied because audiences, political aims, casualties, journalists and the progress of each war also mattered.

Anchor dates

• 1859: French and Austrian mobilisation during war in Italy.
• 1861-65: American Civil War.
• 1866 and 1870: Prussian victories demonstrating staff planning and technology in combination.
• 1914: defensive firepower helped halt a war of movement on the Western Front.
• 1916: Verdun.
• 1917-18: tanks, aircraft, motor transport and radio developed rapidly.
• 1940: German defeat of France.
• 1941: Pearl Harbor.
• 1942: Midway.
• 1943: Hamburg bombing and Atlantic turning point.
• 1945: Tokyo firebombing and Hiroshima.
• 1968: Tet Offensive and intense television coverage.
• 1991: First Gulf War.

Essential vocabulary

Firepower is the destructive capacity weapons can deliver. Logistics means moving and sustaining forces. Doctrine is an organised approach to fighting. Mobilisation prepares and deploys people and resources for war. Attrition seeks victory by wearing down an opponent. Combined arms coordinates different weapons and forces. Propaganda deliberately shapes attitudes; it is not automatically false. Censorship restricts information. Portrayal means how war is represented, while remembrance concerns how it is commemorated and understood later. Deterrence aims to prevent action by threatening unacceptable consequences.

Breadth theme 1: reporting and portraying war

The telegraph accelerated reporting during the American Civil War, while photography produced powerful visual records. Technology did not remove mediation: editors selected reports, cameras had technical limits and images acquired meanings through captions and later reuse. During the Spanish-American War, competitive newspapers helped create a dramatic public story, though journalism alone did not cause the conflict.

Film expanded possibilities during the First World War, but official control and practical restrictions shaped what audiences saw. Radio made political leadership more immediate; filmed Second World War reporting and newsreels combined information, morale and spectacle. Television altered the experience of Vietnam. Coverage of the Tet Offensive in 1968 became especially important because it appeared to challenge official claims of progress, although media reporting interacted with casualties, credibility and political division rather than independently turning opinion.

Satellite communication made reporting from the 1991 Gulf War much faster. Yet apparent immediacy did not guarantee completeness: military briefings, access rules and selected imagery still framed the conflict.

War was also remembered through ceremonies, books, comics, theatre, film and television. All Quiet on the Western Front offered a bleak portrayal in 1930. Hollywood films of the 1940s and 1950s often emphasised Second World War purpose and heroism, while films about Vietnam in the 1970s and 1980s frequently stressed trauma, moral uncertainty or institutional failure. Treat portrayals as evidence of the time in which they were produced as well as representations of earlier events.

Breadth theme 2: influencing public response

Governments used speeches, briefings, propaganda and information control to secure support, justify sacrifice and define the enemy. Lincoln's Gettysburg Address connected Union war aims to national ideals. During the First World War, US propaganda demonised Germany and contributed to intense anti-German sentiment in 1917-18. Roosevelt's radio address after Pearl Harbor framed the attack and America's entry into war for a mass audience.

Official influence had limits. Civil War conscription provoked hostility despite patriotic appeals. Vietnam exposed a widening credibility gap when official optimism conflicted with events and reporting. In 1991, regular briefings and managed journalist access helped the US government present a controlled image of precision and progress. Compare methods, political context and effects; do not assume that every audience believed the same message.

Can you simplify that for me, please?

Separate three questions. What happened? concerns events and military reality. What could people see or hear? concerns communications and reporting. What were they encouraged to believe? concerns propaganda and control. The three overlap but are never identical. Use this distinction whenever a question asks about public response.

Depth study 1: firepower and steam power, 1859-70

Railways and steamships increased the potential speed of mobilisation and supply, but the French and Austrian armies encountered deployment problems in 1859. New weapons included Colt revolvers, breechloading rifles and Krupp artillery. The debate between breechloaders and muzzle-loaders involved rate of fire, range, training, reliability and tactical use rather than a single obvious answer.

The younger Moltke and the Prussian general staff linked planning, training, railways and battlefield command in 1866 and 1870. Grant used transport, communications, manpower and sustained operations during the American Civil War. In both cases, leadership helped turn industrial capacity into military effect.

Depth study 2: defensive technology, c1900-16

Smokeless powder, machine guns and improved artillery increased concealment, range and lethality before 1914. Military thinkers recognised some changes but did not always solve the operational problems they created. French 75mm guns and German heavy artillery influenced Plan XVII and the Schlieffen Plan.

In 1914, firepower, mobilisation plans and command decisions contributed to the failure of movement on the Western Front. Joffre and the younger Moltke adapted imperfectly. At Verdun in 1916, Falkenhayn's offensive and Petain's defence showed technology serving attritional strategies, supported by logistics, rotation and artillery rather than deciding the battle independently.

Depth study 3: radio, engines and mobile warfare, 1917-40

Internal-combustion engines enabled tanks, aircraft and motor transport. Cambrai in 1917 demonstrated concentrated tank possibilities but also mechanical, infantry and supply limits. Amiens in 1918 combined surprise, artillery, tanks, aircraft and infantry more effectively. Radio promised faster coordination, though early systems were limited and vulnerable.

In the 1930s, France and Germany drew different conclusions. Gamelin's forces possessed modern equipment but were constrained by planning, command arrangements and operational assumptions in 1940. Guderian argued for concentrated armoured forces supported by radio and air power. During the attack on France, commanders including Guderian and Rommel exploited tempo and disruption. Avoid treating Blitzkrieg as a machine that made victory automatic.

Depth study 4: war at sea, 1917-45

German submarines threatened Allied shipping in 1917-18, but convoys and anti-submarine measures reduced their effectiveness. During the Second World War, Donitz's U-boats again threatened Atlantic supply. Escorts, radar, air coverage, intelligence and growing Allied production changed the balance; May 1943 is a major turning point. Enigma mattered as part of a wider intelligence and operational system, not as a single secret that won the war.

Air power changed naval warfare. Yamamoto planned the 1941 attack on Pearl Harbor to weaken US power, but it did not eliminate American carriers or secure a durable strategic settlement. At Midway in 1942, intelligence, reconnaissance, timing and carrier aviation shaped the contest between Yamamoto and Nagumo on one side and Nimitz and Spruance on the other.

Depth study 5: air power and nuclear weapons, 1943-91

Bombs, countermeasures, jet engines, missiles and nuclear weapons transformed strategic planning. Harris's attack on Hamburg in 1943 and Curtis LeMay's campaign against Tokyo in 1945 demonstrated enormous destructive capacity. Hiroshima introduced nuclear attack, while later nuclear arsenals centred increasingly on deterrence.

Destruction did not guarantee political success. US air power inflicted heavy damage in North Vietnam between 1964 and 1973 but could not independently secure American aims. In 1991, coalition air power was highly effective in a shorter conventional campaign, supported by intelligence, precision systems and overwhelming combined forces. Compare strategic context before declaring air power successful or unsuccessful.

Paper 3 lasts 2 hours 15 minutes, carries 60 marks and is worth 30% of the A level.

Section A: evaluating a contemporary source

Section A is compulsory. One source of about 350 words is assessed through two related enquiries drawn from the depth studies. Analyse its precise claims, tone and emphasis; consider the author's position, purpose, audience and timing; then use contextual knowledge to explain what it can reveal and where its perspective or information creates limits. Avoid generic comments that could fit any source.

Section B: the depth essay

Choose one of two questions. The essay may cross depth topics and can test cause, consequence, change, continuity, similarity, difference or significance. Build a judgement about the interaction of technology and human use. Organise by analytical factors, compare their weight and use named operations and leaders as evidence rather than biography.

Section C: the breadth essay

Choose one of two essays covering at least 100 years. Questions focus on the process, extent, impact or pattern of change. Track the full period and compare phases. Distinguish technological capacity from actual reporting practice, and official attempts to influence opinion from their effects. Select turning points and explain why they changed the relationship between war, media, government and public response.

Retrieval practice

• Why did faster communication not produce complete reporting?
• How did official influence differ between 1917-18, Vietnam and 1991?
• Why did Prussia use nineteenth-century technology effectively?
• Why did defensive firepower create an operational problem by 1914?
• What made mobile warfare effective in 1940?
• Why did submarine success decline during both world wars?
• Why did air power produce different political results in 1945, Vietnam and 1991?

Take this further

Create a three-column grid for each case: new capability, human or organisational use, and enemy or public response. This prevents technological determinism and makes comparison easier. For the breadth study, add a fourth column: what the audience could not see.

Your next action

Check that your option code is 37.1. Learn the anchor dates, then choose one technology and explain in five sentences why its effect depended on leadership, organisation and countermeasures. Finish by comparing how Americans encountered war in 1861, 1968 and 1991.

Official course source used

This guide follows the Pearson Edexcel Level 3 Advanced GCE in History specification, Issue 4, June 2026, option 37.1 and the Paper 3 assessment requirements.