AQA GCSE History: Conflict and Tension -- Complete Guide to All Four Depth Studies
AQA GCSE History: Conflict and Tension -- Complete Guide to All Four Depth Studies
The Conflict and Tension options form the Wider World Depth Study on the AQA GCSE History specification. Every student must study one of these topics, and it appears on Paper 1, Section B: Understanding the Modern World. Four options are available, each covering a different period and theatre of conflict. This guide provides an overview of all four so you can revise effectively whichever option your school has chosen.
All four options share the same assessment structure. The paper lasts 1 hour 45 minutes for 84 marks total. You should spend approximately 50-55 minutes on Section B. The question types are:
- Source utility (8 marks) -- evaluate the content and provenance of a source.
- Write an account (8 marks) -- an analytical narrative linking events and consequences.
- Essay (16 marks + 4 SPaG) -- a sustained argument weighing factors and reaching a judgement.
For detailed advice on each question type, see our AQA GCSE History exam technique guide.
Option 1: Conflict and Tension -- The First World War, 1894-1918
This option covers the causes, course, and consequences of the First World War.
Causes of the War
The long-term causes trace back to the late nineteenth century. The alliance system divided Europe into two armed camps: the Triple Alliance (Germany, Austria-Hungary, Italy) and the Triple Entente (France, Russia, Britain). These alliances meant that a crisis involving one nation could drag in all the others.
Imperial rivalry heightened tensions. Britain and Germany competed for global influence, clashing over colonies in Africa during the Moroccan Crises (1905, 1911). The naval race -- especially the competition to build Dreadnought battleships -- fuelled mutual suspicion and drove a broader arms race.
Nationalism destabilised the Balkans. Pan-Slavism threatened Austria-Hungary's multi-ethnic empire, while Serbian nationalism, backed by Russia, made the region a powder keg. The Balkan Wars of 1912-1913 increased Austria-Hungary's determination to crush Serbian influence.
The assassination of Archduke Franz Ferdinand on 28 June 1914 was the trigger. Gavrilo Princip, a Bosnian Serb nationalist linked to the Black Hand, killed the heir to the Austro-Hungarian throne in Sarajevo. Austria-Hungary issued a harsh ultimatum to Serbia. Serbia's partial acceptance was not enough. The alliance system then pulled one nation after another into the conflict over the following weeks -- the so-called "July Crisis."
Examiners expect you to weigh these factors against each other. Was the alliance system the main cause, or would there have been no war without the assassination? Could the July Crisis have been resolved peacefully if leaders had acted differently?
The Western Front
The Schlieffen Plan -- Germany's strategy to defeat France quickly through Belgium before turning east -- failed. Belgian resistance, the British Expeditionary Force, and faster-than-expected Russian mobilisation halted the German advance. The result was the Race to the Sea and trench lines from the Channel to Switzerland.
Trench warfare defined the conflict: barbed wire, machine guns, mud, and stalemate. Key battles you must know include:
- Verdun (1916) -- Germany's attempt to "bleed France white," lasting ten months with over 700,000 casualties combined.
- The Somme (1916) -- the first day (1 July) saw around 57,000 British casualties. The battle introduced the tank and placed sustained pressure on German resources.
- Passchendaele (1917) -- the Third Battle of Ypres, fought in appalling mud, becoming a symbol of attritional warfare.
New technology reshaped combat: machine guns, poison gas (first used at Ypres, 1915), tanks (first at the Somme, 1916), and aircraft that evolved from reconnaissance to fighters and bombers.
The End of the War
The USA's entry in April 1917 tipped the balance. Germany's Spring Offensive (1918) initially made gains but overextended its forces. The Allied Hundred Days Offensive from August 1918 drove the Germans back using combined arms. With the home front collapsing under naval blockade and revolution spreading, the Kaiser abdicated. The Armistice was signed on 11 November 1918.
The Treaty of Versailles and its consequences are covered in our Conflict and Tension 1918-1939 revision guide.
Key Figures
- Kaiser Wilhelm II -- aggressive foreign policy contributed to pre-war tensions.
- Archduke Franz Ferdinand -- his assassination triggered the July Crisis.
- Field Marshal Haig -- controversial BEF commander during the Somme and Passchendaele.
- General Ludendorff -- directed Germany's strategy in the war's final phase.
Option 2: Conflict and Tension Between East and West, 1945-1972
This option covers the origins, development, and easing of Cold War tensions between the USA-led West and the Soviet-led East.
Origins of the Cold War
The USA and Soviet Union were wartime allies against Hitler but held fundamentally opposed ideologies -- capitalism and democracy versus communism and one-party rule. The Yalta and Potsdam conferences (1945) exposed growing disagreements. At Yalta, Stalin, Roosevelt, and Churchill agreed to divide Germany into zones and hold free elections in Eastern Europe. By Potsdam, Truman had replaced Roosevelt and was far more suspicious of Soviet intentions. Stalin was already installing communist governments across Eastern Europe, and the atomic bomb -- tested just before Potsdam -- deepened Soviet mistrust.
Churchill described the division of Europe in his famous Iron Curtain speech (1946). The Truman Doctrine (1947) committed the USA to containing communism. The Marshall Plan (1948) provided economic aid to rebuild Western Europe and prevent communism gaining ground. The Berlin Blockade (1948-1949) -- Stalin's attempt to force the Allies out of West Berlin -- was defeated by the Berlin Airlift, which supplied the city by air for nearly a year. This crisis led to NATO (1949) and later the Warsaw Pact (1955), formalising the military division of Europe.
Escalation and Crises
The arms race intensified after the Soviets tested an atomic bomb in 1949. Both sides developed hydrogen bombs, and the doctrine of Mutually Assured Destruction (MAD) defined the nuclear standoff.
The Hungarian Uprising (1956) showed the limits of Western intervention. Soviet tanks crushed Hungary's attempt to leave the Warsaw Pact under Imre Nagy. The West protested but did not act.
The Berlin Wall (1961) sealed the division of the city and became the Cold War's most potent symbol. The Cuban Missile Crisis (October 1962) brought the world to the brink of nuclear war. Kennedy's naval blockade forced Khrushchev to withdraw missiles from Cuba in exchange for a US pledge not to invade and the secret removal of American missiles from Turkey. The crisis spurred arms control -- the Partial Test Ban Treaty (1963) and Nuclear Non-Proliferation Treaty (1968).
Detente
By the late 1960s, both superpowers sought to reduce tensions. The SALT I talks (1969-1972) limited nuclear arsenals. Detente did not end ideological hostility, but it marked a significant shift from the brinkmanship of the early 1960s.
Key Figures
- Stalin -- established communist control over Eastern Europe.
- Truman -- articulated the policy of containment.
- Khrushchev -- central to the Hungarian Uprising, Berlin Wall, and Cuban Missile Crisis.
- Kennedy -- his handling of the Cuban Missile Crisis is a major exam focus.
Option 3: Conflict and Tension in Asia, 1950-1975
This option covers two Cold War conflicts in Asia -- the Korean War and the Vietnam War.
The Korean War, 1950-1953
Korea was divided at the 38th parallel: a communist North under Kim Il-sung and a capitalist South under Syngman Rhee. On 25 June 1950, North Korea invaded. The UN Security Council -- with the Soviet Union absent -- voted to intervene. The force was overwhelmingly American, commanded by General MacArthur.
Key events: the Pusan Perimeter (UN forces held a small defensive zone); MacArthur's Inchon Landing (a bold amphibious assault that turned the war); the advance to the Yalu River, which triggered Chinese intervention as hundreds of thousands of troops drove UN forces back south; and the resulting stalemate near the 38th parallel. MacArthur was dismissed by Truman in April 1951 for publicly advocating nuclear weapons against China.
The armistice (July 1953) left Korea divided along roughly the same line. Over two million Koreans and around 36,000 Americans died. No peace treaty was ever signed. The war demonstrated the USA's commitment to containment in Asia, strengthened NATO, and dramatically increased American military spending.
The Vietnam War
After France's defeat at Dien Bien Phu (1954), Vietnam was divided at the 17th parallel -- communist North under Ho Chi Minh, and South under Ngo Dinh Diem, backed by the USA.
The Gulf of Tonkin Incident (1964) gave President Johnson authority to escalate. By 1968, over 500,000 American troops were deployed. The USA used search and destroy missions, strategic hamlets, napalm, Agent Orange, and massive bombing campaigns. Yet these tactics struggled against the Viet Cong's guerrilla warfare -- tunnel networks, booby traps, and local support.
The Tet Offensive (January 1968) was the turning point. Though a military failure for the Viet Cong, it shattered American public confidence in the war. President Nixon pursued Vietnamisation -- withdrawing American troops while building up South Vietnamese forces -- and expanded operations into Cambodia and Laos to cut the Ho Chi Minh Trail. The Paris Peace Accords (1973) ended US involvement, but Saigon fell in April 1975.
Consequences: Over 58,000 Americans and an estimated two to three million Vietnamese died. The war damaged American prestige, created deep divisions in American society, and fuelled a powerful anti-war movement that became one of the defining political movements of the era.
Key Figures
- Kim Il-sung -- launched the Korean War.
- General MacArthur -- UN commander in Korea; dismissed for insubordination.
- Ho Chi Minh -- leader of North Vietnam and figurehead of independence.
- President Johnson -- escalated US involvement after the Gulf of Tonkin.
- President Nixon -- pursued Vietnamisation and withdrew American forces.
Option 4: Conflict and Tension -- The Gulf and Afghanistan, 1990-2009
The most contemporary option, covering conflicts in the Middle East and Central Asia.
The Gulf War, 1990-1991
On 2 August 1990, Iraq under Saddam Hussein invaded Kuwait, citing territorial claims and oil disputes. A US-led coalition of over 30 nations assembled with clear UN backing -- Resolution 678 authorised "all necessary means" to liberate Kuwait.
Operation Desert Storm began on 17 January 1991 with a devastating five-week air campaign targeting military infrastructure and supply lines. The ground war began on 24 February and lasted just 100 hours. Coalition forces swept through Iraqi defences, liberated Kuwait, and inflicted enormous losses on the retreating Iraqi army along the "Highway of Death."
President George H.W. Bush chose not to advance on Baghdad or remove Saddam from power -- a decision that remained controversial. Saddam survived, brutally suppressed Kurdish and Shia uprisings, and remained a destabilising force in the region. No-fly zones were established to protect civilian populations, and UN weapons inspectors were sent to dismantle Iraq's weapons programmes.
The War in Afghanistan, 2001-2009
The September 11 attacks (2001) killed nearly 3,000 people and were planned by Osama bin Laden, sheltered by the Taliban in Afghanistan. President George W. Bush launched Operation Enduring Freedom in October 2001. American air power combined with Northern Alliance ground forces toppled the Taliban within weeks. A new government under Hamid Karzai was established, but bin Laden escaped at Tora Bora.
The Taliban regrouped and launched a growing insurgency. Key challenges included Afghanistan's mountainous terrain, a porous Pakistani border, governance corruption, civilian casualties from coalition operations, and the diversion of resources to Iraq after the 2003 invasion.
The Iraq War (2003) is also relevant. The USA and UK invaded claiming Saddam had weapons of mass destruction, but none were found. The invasion lacked clear UN authorisation and was far more controversial than the 1991 Gulf War.
By 2009 -- the end point of the specification -- Afghanistan remained unstable. President Obama ordered a "surge" of additional troops, but the fundamental challenges of the conflict were unresolved.
Consequences: The wars in Afghanistan and Iraq raised profound questions about the use of military force, the legality of pre-emptive war, the difficulty of nation-building, and the human cost of prolonged conflict. These are exactly the kinds of questions AQA examiners want you to engage with.
Key Figures
- Saddam Hussein -- Iraqi dictator whose invasion of Kuwait triggered the Gulf War.
- George H.W. Bush -- US President during the Gulf War.
- Osama bin Laden -- leader of al-Qaeda; planned the 9/11 attacks.
- George W. Bush -- launched the War on Terror.
- Tony Blair -- UK Prime Minister who supported both Afghanistan and Iraq interventions.
Exam Strategy Across All Four Options
Source utility questions require you to evaluate both content and provenance. Do not just describe what the source shows -- explain what it reveals about the enquiry and consider who created it, when, and why.
"Write an account" questions demand analytical narrative. Select two or three key events, explain them in order, and explicitly link them: "This was significant because...", "As a result of this..."
Essay questions require a sustained argument. Address the factor named in the question, consider at least two alternative factors, and reach a clear judgement in your conclusion. Do not sit on the fence -- examiners reward students who commit to a position and justify it with evidence. Remember that 4 marks are for SPaG on the essay question, so write in clear, formal English, use paragraphs, and spell key historical terms correctly.
Prepare with LearningBro
We have dedicated practice courses for each Conflict and Tension option, with exam-style questions covering the full specification content.
- Conflict and Tension: The First World War
- Conflict and Tension: East and West
- Conflict and Tension: Conflict in Asia
- Conflict and Tension: The Gulf and Afghanistan
Good luck with your revision.