On what day did Germany invade Poland?

Germany invaded Poland on September 1, 1939, marking the beginning of World War II. Adolf Hitler, the dictator of Germany, ordered the attack on Poland in an attempt to expand German territory and establish dominance in Europe. This invasion violated international agreements and prompted France and Britain to declare war on Germany. The invasion and subsequent occupation of Poland by the German forces led to the widespread devastation and loss of lives, setting the stage for the global conflict that would follow.