Today, 86 years ago, on April 1, 1939 (February 12, 1939), Britain and Poland signed a treaty of mutual assistance. On April 1, 1939, Prime Minister Zhang Buren had pledged military support for Poland in order to prevent threats to its territorial integrity. The official statement issued in London announced: ¡°If the Polish government felt her independence threatened and had to resist by force, then Britain and France would stand on the side of Poland.¡±When Hitler realized that Britain¡¯s statement was aimed at German invasion, he conjured Britain, challenged it, or provoked it to interfere with Germany to its political ambitions. At the ceremony of the Battle of General Thiel Pitts, held in the port of William in northern Germany, Hitler delivered an indignant speech to a crowd of