What is the event that started world war 2
- What was the immediate event that started world war 2
- What was the main event that started world war 2
- What event started world war 2 in europe
- What event started world war 2 when did it occur
- What was the main trigger event that started world war 2
- What event officially started world war 2
- What event finally started world war 2
- What event ultimately started world war 2
- What event officially started world war 2 in europe
- Name the event that started world war 2
- What specific world event started world war 2
- What event in 1939 started world war 2