what caused great britain and france to declare war on germany in 1939?\no the appeasement policy\no the…

what caused great britain and france to declare war on germany in 1939?\no the appeasement policy\no the invasion of poland\no the nonaggression pact\no the surrender of poland

what caused great britain and france to declare war on germany in 1939?\no the appeasement policy\no the invasion of poland\no the nonaggression pact\no the surrender of poland

Answer

Answer:

B. the invasion of Poland

Brief Explanations:

On September 1, 1939, Germany invaded Poland. As Poland had mutual - assistance treaties with Britain and France, they declared war on Germany on September 3, 1939.