The treaty with Poland did not oblige Britain to declare war on Germany if Poland was attacked by Germany .
States do not declare war because of a piece of paper .
In 1914, Britain had no treaties , not with France, not with Russia; it remained neutral when Germany attacked Russia ,but declared war when Germany attacked France, but not when Italy attacked the Ottoman Empire .
Before 1914,a German attack on an independent Poland would not have resulted in a British DOW.
If Hitler was convinced that F +B would declare war, he would not have attacked Poland .
The Wohlthat discussions of August 1939 fortified Hitler's conviction that Britain would do nothing .