In 1928, Nazi Party candidates had a poor showing in elections (via HistoryNet). This scared Adolph Hitler, so he sought to record his thoughts as a way to convince Germans that the Nazi Party was the party of Germany. It was in this mindset that Hitler recorded his belief in Germany acquiring “lebensraum” — necessary living space for development — by conquering surrounding countries. Due to the penalties imposed on Germany after World War I, the country was a laughingstock at the time of Hitler’s ascendancy to power. Thus, Hitler sought to transform this image by taking on the key military powers of Europe — Great Britain, the Soviet Union, and France. 

In this work, Hitler also stated his desire to seek an alliance with Italy — a nation he knew also had desires to expand — to help in his military plans. Once the European powers had been defeated, the German and Italian militaries could combine to fight the United States, which Hitler believed would be aroused to fight by the time — in Hitler’s mind — that he had conquered the key powers of Europe. 

Once Hitler came to power as the German chancellor, publishing such a work was not really necessary. But had Hitler been successful in his attempted world conquest, perhaps he would have published his second text.