Second World War: Causes, Hitler's Rise and the Policy of Appeasement

The Second World War causes Hitler Germany appeasement Munich Agreement define the central events of modern world history: the war (1939–1945) arose from the punitive Treaty of Versailles, the Great Depression, Hitler's rise to power, and Britain and France's failed policy of appeasement that peaked disastrously at Munich in September 1938.

What Were the Long-Term Causes of the Second World War?

The seeds of the Second World War were sown at the Paris Peace Conference of 1919. The Treaty of Versailles, which Germany was forced to sign, was contemptuously called the Diktat — a dictated peace — by Germans. Its terms were severe and far-reaching:

• Territorial losses: Germany lost 13% of its territory and 10% of its population. Alsace-Lorraine went to France; Eupen and Malmedy to Belgium; North Schleswig to Denmark; Posen and West Prussia to Poland — creating the Polish Corridor that severed East Prussia from the rest of Germany; and Memel was ceded to Lithuania.
• War Guilt Clause (Article 231): Germany was forced to accept sole responsibility for causing the First World War, making it liable for all Allied losses and damages.
• Reparations: Germany was initially ordered to pay 132 billion gold marks in war reparations. The burden was partially eased by the Dawes Plan (1924) and the Young Plan (1929), but it devastated the German economy and fostered enormous resentment.
• Military restrictions: The German army was limited to 100,000 soldiers. Germany was forbidden from maintaining an air force or a submarine fleet, and the Rhineland was demilitarized.

These harsh provisions created a climate of national humiliation and a burning desire for revision. The Great Depression of 1929 further destroyed the fragile Weimar Republic: by 1932, over six million Germans were unemployed. The democratic government was derided as a system imposed by traitors — the so-called "November Criminals" who had accepted the Versailles Treaty. This despair and resentment made Germany fertile ground for extremist politics.

How Did Hitler Rise to Power and What Were the Key Steps Toward War?

Adolf Hitler and the National Socialist German Workers' Party (NSDAP, or Nazis) offered desperate Germans scapegoats — Jews, Communists, and liberals — and a vision of national regeneration and greatness. Hitler was appointed Chancellor on January 30, 1933. Within weeks, the Reichstag Fire (February 1933) was used to justify the Enabling Act, which granted Hitler dictatorial powers and effectively ended the Weimar Republic. The Nuremberg Laws (1935) stripped Jews of German citizenship. Kristallnacht — the Night of Broken Glass (November 1938) — saw nationwide pogroms against Jewish property, synagogues, and people.

Hitler's foreign policy was one of calculated aggression, each step testing the resolve of the Western powers:

• Rearmament (1933 onward): Germany began secretly, then openly, rearming in direct violation of the Versailles Treaty.
• Remilitarization of the Rhineland (March 1936): German troops re-entered the demilitarized Rhineland. France and Britain protested but did nothing.
• Rome-Berlin Axis (October 1936): A political alignment with Mussolini's fascist Italy, later expanded to include Japan via the Tripartite Pact (1940).
• Anschluss (March 1938): Germany annexed Austria, uniting the two German-speaking nations in direct violation of Versailles.
• Sudetenland Crisis (September 1938): Hitler demanded the German-speaking Sudetenland region of Czechoslovakia, precipitating a European crisis that culminated in the Munich Agreement.

What Was the Policy of Appeasement and Why Did the Munich Agreement Fail?

Appeasement was the policy adopted by Britain and France of making concessions to Hitler's territorial demands in order to avoid another catastrophic war. British Prime Minister Neville Chamberlain was its leading champion. The logic was understandable — memories of the First World War's carnage were vivid, and many in Britain believed Germany had legitimate grievances arising from the harsh Versailles settlement. However, appeasement fundamentally misread Hitler's intentions, mistaking tactical accommodation for a genuine path to peace.

The policy reached its nadir at the Munich Agreement (September 29–30, 1938). Britain, France, Germany, and Italy met in Munich and agreed to hand the Sudetenland to Germany. Czechoslovakia — whose territory was being dismembered — was not even invited to the conference. Chamberlain returned to London waving the signed document and declaring "peace for our time." Winston Churchill's verdict was withering: "You were given the choice between war and dishonour. You chose dishonour and you will have war."

Churchill was proved right almost immediately. In March 1939, Germany occupied the remainder of Czechoslovakia — making plain that Hitler's ambitions were not limited to protecting ethnic Germans but aimed at continental conquest. Appeasement collapsed. Britain and France issued guarantees of Poland's independence. When Germany invaded Poland on September 1, 1939, Britain and France declared war on Germany on September 3, 1939.

What Was the Global and East Asian Context of the Second World War?

The Second World War was not merely a European conflict. In East Asia, Japan had been pursuing imperial expansion since the Manchurian Incident (1931), when Japan seized Manchuria from China. Japan launched a full-scale invasion of China in 1937 (the Second Sino-Japanese War), causing devastating civilian casualties. Japan joined Germany and Italy in the Tripartite Pact (1940), formalising the Axis alliance. Meanwhile, Mussolini's Italy had invaded Ethiopia in 1935, flouting the League of Nations, which proved entirely incapable of restraining aggressor states. In Spain (1936–1939), Hitler and Mussolini actively supported General Franco's fascist forces in the Spanish Civil War, defeating the elected Republican government and gaining invaluable combat experience for their armed forces.

Key Events Leading to the Second World War

Year / Date	Event	Significance
1919	Treaty of Versailles	Created German resentment through territorial losses, War Guilt Clause, and massive reparations; planted roots of future conflict
1929	Great Depression	Devastated German economy; mass unemployment of 6 million by 1932 boosted extremist parties including the Nazis
1931	Japanese invasion of Manchuria	Demonstrated the League of Nations' impotence; emboldened aggressor states globally
January 30, 1933	Hitler appointed Chancellor of Germany	Nazi takeover of Germany; rapid dismantling of Weimar democracy through the Enabling Act
1935	Italian invasion of Ethiopia; Nuremberg Laws	Axis aggression went unchecked; Jews stripped of German citizenship
March 1936	Remilitarization of the Rhineland	First overt German violation of Versailles; Western inaction encouraged further aggression
1936–1939	Spanish Civil War	Germany and Italy tested weapons and Blitzkrieg tactics by backing Franco's fascists
March 1938	Anschluss — annexation of Austria	Germany expanded without Allied military resistance; violation of Versailles ignored
September 29, 1938	Munich Agreement	Sudetenland ceded to Germany; peak and symbol of appeasement; Czechoslovakia excluded from talks
March 1939	Germany occupies remainder of Czechoslovakia	Exposed appeasement as a catastrophic failure; ended pretense of Hitler's limited aims
September 1, 1939	German invasion of Poland	Immediate trigger of the Second World War; Britain and France declared war on September 3

How Did the War Unfold and What Were Its Key Turning Points?

Germany's military strategy relied on Blitzkrieg (lightning war) — fast-moving armoured columns supported by close air support that shattered enemy defences before they could organise. France fell shockingly fast in June 1940. The Battle of Britain (1940) saw the Royal Air Force successfully defend against German air bombardment, preventing an invasion of Britain. On June 22, 1941, Germany launched Operation Barbarossa — the invasion of the Soviet Union — opening the vast and brutal Eastern Front, which would become the most destructive theatre of the entire war. Japan's surprise attack on the US naval base at Pearl Harbor, Hawaii (December 7, 1941) brought the United States fully into the conflict on the Allied side.

The tide began to turn with the catastrophic German defeat at the Battle of Stalingrad (1942–43) — the largest and bloodiest battle in history, ending German eastward expansion and marking the decisive turning point on the Eastern Front. The British victory at El Alamein (1942) halted Field Marshal Rommel's advance across North Africa. The Allied landings on the Normandy beaches on D-Day (June 6, 1944) opened a second front in Western Europe, squeezing Germany from both directions. Germany surrendered unconditionally on May 8, 1945 (V-E Day). Japan surrendered on September 2, 1945 (V-J Day), following the atomic bombings of Hiroshima (August 6) and Nagasaki (August 9, 1945) — the first and only use of nuclear weapons in warfare.

What Were the Consequences and Legacy of the Second World War?

The Second World War was the deadliest conflict in human history, causing an estimated 70–85 million deaths — the majority of them civilians. Its consequences fundamentally reshaped the world order:

• The United Nations (1945) replaced the failed League of Nations as the principal forum for international peace and collective security.
• The Nuremberg Trials (1945–46) established the landmark principle of individual criminal accountability for war crimes, crimes against peace, and crimes against humanity.
• The Universal Declaration of Human Rights (1948) codified fundamental rights for all people, directly inspired by the horrors of Nazi persecution.
• The war dramatically accelerated decolonization across Asia and Africa, as European powers were severely weakened and nationalist movements gained decisive momentum.
• The Cold War between the USA and USSR emerged from wartime tensions and defined global geopolitics for the next four decades.
• The Marshall Plan channelled American aid to rebuild Western Europe; NATO (1949) created a collective Western security alliance. The state of Israel was established in 1948, partly in response to the Holocaust — the systematic genocide of six million Jews by Nazi Germany.

Frequently Asked Questions

What was the main cause of the Second World War?

The Second World War had multiple interlocking causes. The punitive Treaty of Versailles (1919) created deep German resentment through territorial losses, the humiliating War Guilt Clause, and crippling reparations. The Great Depression (1929) destroyed the German economy and enabled Hitler's rise. Hitler's systematic aggression — rearmament, remilitarization of the Rhineland, the Anschluss, and the Sudetenland demand — was facilitated by Britain and France's failed appeasement policy. Germany's invasion of Poland on September 1, 1939, was the immediate trigger.

What was the Munich Agreement and why is it considered a failure?

The Munich Agreement (September 29–30, 1938) was signed by Britain, France, Germany, and Italy, handing the Sudetenland region of Czechoslovakia to Hitler without consulting Czechoslovakia. British PM Neville Chamberlain returned proclaiming "peace for our time," but within six months Hitler occupied the rest of Czechoslovakia, proving that appeasement only emboldened Nazi aggression rather than satisfying it. The Munich Agreement is now synonymous with the dangers of yielding to a dictator's demands.

How did Hitler rise to power in Germany?

Hitler exploited the deep economic misery caused by the Great Depression (6 million unemployed by 1932) and the political instability of the Weimar Republic. His Nazi Party offered scapegoats (Jews, Communists) and promised national revival. He was appointed Chancellor on January 30, 1933. Using the Reichstag Fire as a pretext, he secured the Enabling Act (March 1933), which gave him dictatorial powers. He then systematically dismantled democratic institutions and began persecuting Jews through the Nuremberg Laws (1935) and Kristallnacht (1938).

What was the policy of appeasement and who championed it?

Appeasement was the British and French policy of making concessions to Hitler's territorial demands in hopes of preventing another world war. It was championed principally by British Prime Minister Neville Chamberlain, who believed Hitler's grievances were legitimate and that satisfying them would bring stability. The policy failed because Hitler's ambitions were not limited to revision of the Versailles settlement but aimed at continental domination. Churchill famously condemned it: "You were given the choice between war and dishonour. You chose dishonour and you will have war."

What were the main consequences of the Second World War?

The Second World War caused approximately 70–85 million deaths and left large parts of Europe and Asia in ruins. Key consequences included: the formation of the United Nations (1945); the Nuremberg Trials establishing individual accountability for war crimes; the Universal Declaration of Human Rights (1948); the beginning of the Cold War between the USA and USSR; accelerated decolonization of Asia and Africa; the establishment of the state of Israel (1948); the Marshall Plan for European reconstruction; and the formation of NATO (1949).

Sources and Further Reading

According to IGNOU's modern world history curriculum, the origins of the Second World War must be understood as a confluence of the unresolved tensions from the First World War peace settlement, the global economic crisis of the 1930s, the failure of collective security through the League of Nations, and the ideological challenge posed by fascism and Nazism. Students preparing for UPSC should consult Norman Lowe's Mastering Modern World History, which provides a comprehensive treatment of the interwar period, appeasement, and the war's major campaigns. Eric Hobsbawm's The Age of Extremes: A History of the World, 1914–1991 offers indispensable analytical perspective on this period. For primary source insight, William L. Shirer's The Rise and Fall of the Third Reich remains an essential eyewitness account of Nazi Germany. The NCERT Class 10 textbook India and the Contemporary World – II covers Hitler's rise in the context of the Great Depression and is directly relevant for UPSC Prelims. Spectrum's A Brief History of Modern India and Bipan Chandra's works also situate the Second World War within India's independence movement, making them valuable for integrated Mains preparation.