WORLD HISTORY

Detailed explanation-1: -Nazi Germany’s invasion of Poland on 1 September 1939, and Britain and France’s declaration of war on Germany two days later marks the beginning of World War II.

Detailed explanation-2: -German troops invaded Poland on September 1, 1939, triggering World War II. In response to German aggression, Great Britain and France declared war on Nazi Germany. Nazi Germany possessed overwhelming military superiority over Poland.

Detailed explanation-3: -In World War Two, the Polish armed forces were the fourth largest Allied forces in Europe, after those of the Soviet Union, United States, and Britain. Poles made substantial contributions to the Allied effort throughout the war, fighting on land, sea, and in the air.

Detailed explanation-4: -The heroic defense of Westerplatte is recognized as the first battle of World War II. The garrison of the Polish Army, which from September 1 to September 7, 1939, defended the peninsula against the attack of the German battleship Schleswig-Holstein, has forever gone down in history.