Question 33

German invasion of Poland

The German invasion of Poland on September 1, 1939, is widely regarded as the event that triggered the Second World War. This aggressive act by Nazi Germany led to Britain and France declaring war on Germany, marking the official start of the conflict.

A) Assassination of Archduke Franz Ferdinand

While the assassination of Archduke Franz Ferdinand in 1914 was a significant event that led to the outbreak of World War I, it did not directly cause the Second World War. This event set off a chain of alliances and conflicts during the early 20th century but is unrelated to the causes of the Second World War.

B) German invasion of Poland

This option is correct because the invasion marked the beginning of the Second World War. It was a direct violation of international agreements and prompted immediate military responses from Britain and France, making it the pivotal event that escalated tensions into a global conflict.

C) Russian revolution against the Tsar

The Russian Revolution, which occurred in 1917, resulted in the overthrow of the Tsar and the establishment of a communist government. Although it had significant implications for global politics and contributed to the conditions leading to World War II, it is not an event that directly triggered the conflict.

D) Sinking of the Lusitania

The sinking of the Lusitania in 1915 was a major incident during World War I, leading to shifts in public opinion regarding the United States' involvement in the war. However, this event is not related to the causes of the Second World War and therefore does not apply.

Conclusion

The German invasion of Poland is definitively the correct answer as it directly initiated the Second World War, provoking immediate declarations of war from Britain and France. In contrast, the other options refer to events that either occurred earlier or were unrelated to the specific outbreak of the conflict, underscoring their inapplicability to the question posed.