Conflicts in 1939

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated. Tanks and aircraft played major roles, the latter enabling the strategic bombing of cities and delivery of the only nuclear weapons used in war. World War II was the deadliest conflict in history, causing the death of 60 to 75 million people. Millions died as a result of massacres, starvation, disease, and genocides, including the Holocaust. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

1939–1940 war between the Soviet Union and Finland

German, Soviet, and Slovak attack on and takeover of Poland that marked the start of World War II

eight-month period at the start of World War II, during which there was only one limited military land operation on the Western Front

large-scale military attack performed by the USSR on the Second Polish Republic year 1939

1939 Soviet–Japanese battle in Mongolia

1939 first naval battle of the Second World War

1939 World War II invasion

French ground operation into Saarland from 7 to 16 September 1939

nationalist uprising by Palestinian Arabs in Mandatory Palestine

German military presence in Czechoslovakia between 1939–1945

1939 first of four attempts by Japan to take the city of Changsha during the second Sino-Japanese War

1939 first large offensive victory for the Finns in the Winter War

event during Nazi Germany's invasion of Poland in September 1939

1939 strategic defensive aerial campaign fought by the Luftwaffe over German-occupied Europe and Germany itself during World War II

1938 battle in the Spanish war

1939 battle of the Second Sino-Japanese war

1939 first major aerial battle of the Second World War

1939–45 part of the Eastern Front during WWII

1938 military campaign

military battle in 1939

1939 battle

1939 military offensive of the Second Sino-Japanese War

1939 battle

aviation accident

1939 battle

1939 battle

1939 campaign in the Iberian Peninsula

1939 act of the Spanish Civil War

1939 battle

1939 Japanese campaign in the Second Sino-Japanese War

Spanish coup d'état

1939 aerial bombing of a city

1939 unsuccessful uprising against the Republican government of Juan Negrín in Cartagena, Spain

Failed 1939 coup attempt in Liechtenstein

The S-Plan or Sabotage Campaign or England Campaign was a campaign of bombing and sabotage against the civil, economic and military infrastructure of the United Kingdom from 1939 to 1940, conducted by members of the Irish Republican Army (IRA). It was conceived by Seamus O'Donovan in 1938 at the request of then IRA Chief of Staff Seán Russell. Russell and Joseph McGarrity are thought to have formulated the strategy in 1936. During the campaign there were 300 explosions/acts of sabotage, 10 deaths and 96 injuries.

1939 aerial bombing of a city

1939 battle