World War II: The Great Raids Against Helsinki begins.

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, with many nations mobilising all resources in pursuit of total war. Tanks and aircraft played major roles, enabling the strategic bombing of cities and delivery of the first and only nuclear weapons ever used in war. World War II is the deadliest conflict in history, causing the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Germany, Austria, Japan, and Korea were occupied, and German and Japanese leaders were tried for war crimes.

Helsinki, the capital of Finland, was bombed repeatedly during World War II. Between 1939 and 1944, Finland was subjected to a number of bombing campaigns by the Soviet Union. The largest were three raids in February 1944, which have been called The Great Raids Against Helsinki.

February 6 is the 37th day of the year in the Gregorian calendar; 328 days remain until the end of the year.