Arthur Bliss Lane was a man who was born a long time ago in 1894. He lived in a place called Brooklyn, which is in a big city called New York City. When he grew up, he decided to work in a special job called diplomacy, which meant he would help make friends between countries and try to solve problems when countries didn't get along.
One important thing that Arthur Bliss Lane did was work for the United States government during World War II. He had to go to a country called Poland, which was in the middle of a war. Poland was being attacked by two other countries, Germany and Russia. Arthur had to try to help Poland get the help it needed to fight off the attacks.
Arthur Bliss Lane did a really good job, but unfortunately, Poland ended up being taken over by those other countries. Arthur was very sad about this and wrote a book about what happened to Poland. The book told people about the bad things that can happen when countries don't get along and how important it is to work together to prevent more wars.
So, in summary, Arthur Bliss Lane was a man who worked to make friends between countries and help solve problems. He worked for the United States during World War II and tried to help the country of Poland, which unfortunately ended up being taken over. He wrote a book to remind people about the importance of countries working together to prevent more wars.