In response to the invasion of Poland, which two countries declared war on Germany?

• A. The United States and the Soviet Union
• B. Britain and France
• C. Italy and Japan
• D. Poland and Czechoslovakia

Answer: (B)

When Germany invaded Poland, Britain and France declared war on Germany, honoring their commitments to Poland and signaling the start of World War II in Europe. The United States did not enter the war at this moment and remained officially neutral until 1941. The Soviet Union did not declare war on Germany in response to the invasion, as it had just signed a non-aggression pact with Germany and would only declare war later, after Germany attacked the Soviet Union. Italy and Japan were not the ones to declare war in response to Poland’s invasion. Poland and Czechoslovakia were victims, not declaring war themselves.