Strategic Theatres Of The Second World War
Eight theatres · Sixty-six operations · Mapped, dated and sourced
World War II was fought as a connected set of campaigns across Europe, Africa, Asia, the Atlantic and the Pacific. We follow those campaigns through dated maps, contemporary decisions and source-backed chronology.
“Into the Jaws of Death” · CPhoM Robert F. Sargent, US Coast Guard · NARA 26-G-2343 · Public domain · Source
- EUROPEAN WAR
- 1 Sep 1939–8 May 1945From the German invasion of Poland to the end of the war in Europe
- WAR IN EAST ASIA
- 7 Jul 1937–2 Sep 1945The full-scale Sino-Japanese War preceded the European conflict by more than two years
- THEATRES ON THIS SITE
- 8An editorial structure for navigating overlapping fronts, not a claim that every wartime command used the same divisions
- HUMAN COST
- No single final totalEstimates vary by method and by whether famine, genocide, occupation and other indirect war deaths are included; civilians formed the majority
- MAP METHOD
- Dated statesThe map changes when control, routes, front lines or operational choices materially change
What Were the Theatres of World War II?
The global war, organised by theatre, front and campaign.World War II was fought across several major theatres, each defined by its geography, military commands and campaigns.
There was no single fixed number of theatres used throughout the war. At the broadest level, histories often divide the conflict between the European and Pacific theatres. A common four-theatre model separates Europe, the Mediterranean and North Africa, the Pacific, and China-Burma-India.
More detailed histories divide the war further, treating the Atlantic, Eastern Front, Western Europe, Southeast Asia and other areas as distinct theatres or major fronts. WW2 Theatres follows this more detailed structure, placing campaigns and operations within the wider part of the war in which they were fought.
Explore the Operations of World War II
Dates, objectives, commanders and battlefield decisions in context.The war becomes easier to understand when its operations are followed in sequence. Each operation on WW2 Theatres brings together maps, chronology, commanders, objectives and the decisions that changed what happened next.
Explore Operation Overlord, the Allied invasion of Normandy in June 1944, Operation Dynamo, the evacuation from Dunkirk in 1940, Operation Weserübung in Norway and Denmark, the Battle of Midway and campaigns across every major theatre. Related operations are connected so the larger campaign remains visible while you move through individual battles and events.
The Road to War
The road to war was not a straight line from Versailles to September 1939. The post-war settlement, the occupation of the Ruhr, the Depression, Japan's seizure of Manchuria, Italy's invasion of Ethiopia, the remilitarisation of the Rhineland, the war in China, the Anschluss and the destruction of Czechoslovakia each altered what governments believed could still be deterred or conceded.
This section follows those decisions in the order in which they were made. It asks what governments knew at the time, what alternatives were actually available, and why choices that later appear inevitable often did not look inevitable to the people making them.
The Opening Campaigns
From Poland in September 1939 through Scandinavia, France, the Low Countries, the Battle of Britain and the campaigns in Yugoslavia, Greece and Crete, the first phase of the European war repeatedly overturned pre-war assumptions about mobilisation, air power, armour and the security of fixed defensive systems.
Germany gained control of much of continental Europe, but the sequence did not end in a completed victory. Britain remained in the war, the Mediterranean was still contested, and the decision to invade the Soviet Union in June 1941 opened a conflict on a scale the earlier campaigns had not tested.
The Eastern Front
The German invasion of the Soviet Union in June 1941 opened the largest and most destructive land theatre of the war. Barbarossa, Moscow, Leningrad, Stalingrad, Kursk, Bagration and the final battles in Germany were connected by a front that moved hundreds of kilometres and consumed armies faster than either side had expected.
The military history cannot be separated from occupation and racial war. Mass shootings, starvation, the treatment of Soviet prisoners of war and the destruction of civilian communities followed the armies across the same ground. By 1945 the Red Army had carried the front from the Soviet interior to Berlin and the German field army had suffered its greatest losses in the east.
The Mediterranean, North Africa and Italy
The Mediterranean war linked desert armies to ports, convoys, airfields and naval bases. North Africa, Malta, the struggle for the central Mediterranean, Torch, Tunisia, Sicily and the campaign up the Italian peninsula were separate operations joined by the same problem: sustaining armies across water and difficult ground.
Control shifted repeatedly because tactical success could be undone by fuel, shipping or the loss of a harbour. The theatre also tied British imperial communications, Axis strategy, the defence of Egypt and the opening of a southern route into Europe to one another.
The Western Front
The Western Front reopened at full scale with the Normandy landings on 6 June 1944. The campaign then moved through the breakout from Normandy, the landings in southern France, the pursuit to the German frontier, Arnhem, the Scheldt, the Hürtgen Forest, the Ardennes and the crossings of the Rhine.
Its central problem changed as the advance moved east. Getting an army ashore was replaced by the problem of supplying it across France, opening ports, crossing defended rivers and deciding how quickly a coalition army could pursue without outrunning the roads, railways and fuel behind it.
The Battle of the Atlantic
The Atlantic campaign began with the war in Europe and continued until Germany's surrender. Britain and the Allied armies depended on shipping for food, fuel, weapons, troops and the accumulation of the force that would eventually return to continental Europe.
U-boats tried to break that system while escorts, aircraft, intelligence, radar, direction finding, shipbuilding and convoy tactics changed the balance over time. The battle was not one continuous line in the ocean; it shifted with bases, technology, codebreaking, air cover and the routes merchant ships were ordered to sail.
The Air War over Europe
The air war moved from the Blitz and the defence of Britain into a sustained Allied bombing campaign against German industry, transport, cities and, eventually, the fuel system. At the same time Germany fought to protect its airspace while supplying aircraft and crews to several land fronts.
The effects cannot be measured by bomb tonnage alone. Industrial output, dispersal, air defence, repair capacity, civilian deaths and the diversion of guns, fighters and labour all matter, and the results changed as targeting priorities changed. The oil offensive of 1944 belonged to a different strategic situation from the city attacks that preceded it.
The Pacific
The Pacific war was fought across distances that made bases, shipping and fuel strategic objectives in themselves. Pearl Harbor, the southern offensive, Midway, Guadalcanal, New Guinea, the Central Pacific advance, the Philippines, Iwo Jima and Okinawa formed overlapping campaigns rather than one continuous front.
Carrier aviation and amphibious warfare dominate the familiar narrative, but logistics and the destruction of Japanese shipping were equally important. U.S. submarines progressively severed the routes carrying oil and raw materials to the home islands, while captured airfields and anchorages brought Allied power closer to Japan.
China, Burma and India
Full-scale war between China and Japan began in July 1937, more than two years before Germany invaded Poland. The theatre later joined the long Chinese war to the Japanese conquest of Burma, the defence of India, the struggle over the Burma Road and the air and ground effort required to keep China connected to the Allied coalition.
Imphal, Kohima and the reconquest of Burma were therefore only part of the story. Chinese armies continued to fight on a vast front while Allied strategy argued over resources, command and the relative importance of reopening a land route, supplying China by air and preparing operations elsewhere in the Pacific.
The Holocaust
The Holocaust was the systematic persecution and murder of six million European Jews by Nazi Germany and its collaborators. It developed through exclusion, dispossession, forced concentration, ghettoisation, mass shootings, deportation and extermination camps, and it expanded through the conditions created by German conquest.
This section follows that chronology without treating genocide as an automatic consequence of war or as a single decision taken on one date. It separates policy, implementation and surviving evidence, and keeps the perpetrators, institutions, victims and occupied societies visible in the record.
The War Against Civilians
Occupation brought civilians into the war through forced labour, deportation, hostage-taking, reprisals, famine, siege, racial persecution and mass killing. Strategic bombing and the destruction of cities placed civilians directly inside military campaigns even where they were not the intended target.
The experience was not uniform and should not be collapsed into a single casualty number. This section follows the policies and conditions that produced civilian death and displacement across occupied Europe, the Soviet Union, Asia and the colonial world, with national totals kept subordinate to the evidence for how people were actually exposed to violence.
The Cost
There is no single uncontested total for the dead of the Second World War. National records were incomplete, borders changed, entire communities were destroyed, and later estimates differ over famine, genocide, occupation deaths, prisoners of war and people who died from the indirect consequences of fighting.
The cost section therefore attributes figures rather than presenting one database total as final. It separates military and civilian deaths where the evidence allows, shows ranges where historians disagree, and makes the scale of loss comparable without pretending that unlike categories were counted in the same way.
Explore Each Campaign Day by Day
Follow what happened, where it happened, and why it mattered.Each theatre can be followed date by date. As the chronology moves forward, the map changes with it, showing advances, withdrawals, shifting front lines and the development of the campaign.
The maps are simplified where necessary to keep the main movements readable, especially across large theatres or fast-moving operations.
Campaigns often overlapped, and events on one front could affect decisions somewhere else. Following them in sequence makes those connections easier to see.
From the opening moves to the final outcome, WW2 Theatres shows how individual battles fitted into larger campaigns and how those campaigns connected across the war.
Sources & Archives
External links open the holding institutionThe backbone is the official histories: the United States Army green books, the British and Canadian official series, and their German, French and Soviet equivalents. Around them sit the operational records at Kew and College Park, the German records at Freiburg, and the photographic collections of the Imperial War Museums, NARA, the Bundesarchiv, ECPAD and Library and Archives Canada.
- United States Army in World War II, the official history seriesUS Army Center of Military History
- Operational records of the British and Commonwealth forcesThe National Archives, Kew
- Records of the Allied Expeditionary Force and the American armiesUS National Archives and Records Administration
- German military records, Heeresgruppe and Oberkommando seriesBundesarchiv, Militärarchiv Freiburg
- Photograph, film and sound collections of the Second World WarImperial War Museums
- The Victory Campaign and the Canadian official historiesVeterans Affairs Canada and the Department of National Defence
- French defence audiovisual and operational archivesECPAD and the Service historique de la Défense
- Documenting numbers of victims of the Holocaust and Nazi persecutionUnited States Holocaust Memorial Museum
- Cemeteries, memorials and battlefield interpretationAmerican Battle Monuments Commission and the Commonwealth War Graves Commission
- Openly licensed photographic material used across this siteWikimedia Commons
- Japanese Naval and Merchant Shipping Losses During World War II by All CausesJoint Army-Navy Assessment Committee / Naval History and Heritage Command
Photographs are credited individually on the page they appear on. Material from the US National Archives and the American armed services is in the public domain. Material from the Imperial War Museums is used under the IWM Non-Commercial Licence. Material from the Bundesarchiv is licensed CC BY-SA 3.0 DE. French, Dutch, Belgian and Canadian holdings are credited to the institution that holds them.